Merge branch 'morfo'

Fix: Test incluir ApplicationResponse
Fix: Delete escribir archivo para ver salida
2025-12-04 15:48:00 -05:00 · 2025-01-01 18:40:05 -05:00 · 2025-01-01 18:39:22 -05:00 · 2025-01-01 18:37:09 -05:00 · 2025-01-01 16:56:15 -05:00 · 2024-12-30 19:00:51 -05:00
62 changed files with 5698 additions and 2876 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -215,3 +215,4 @@ tags
 pyvenv.cfg
 .venv
 pip-selfcheck.json
+invoice.xml
--- a/35
+++ b/35
@@ -1,17 +1,24 @@
 # DERIVADO DE https://alextereshenkov.github.io/run-python-tests-with-tox-in-docker.html
-FROM ubuntu:18.04
+FROM ubuntu:24.04

 RUN apt-get -qq update
+
+RUN apt install software-properties-common -y \
+    && add-apt-repository ppa:deadsnakes/ppa
+
 RUN apt-get install -y --no-install-recommends \
-  python3.7 python3.7-distutils python3.7-dev \
-  python3.8 python3.8-distutils python3.8-dev \
+  python3.9 python3.9-distutils python3.9-dev \
+  python3.10 python3.10-distutils python3.10-dev \
+  python3.11 python3.11-distutils python3.11-dev \
+  python3.12 python3-setuptools python3.12-dev \
  wget \
  ca-certificates

 RUN wget https://bootstrap.pypa.io/get-pip.py \
-  && python3 get-pip.py pip==21.3 \
-  && python3.7 get-pip.py pip==21.3 \
-  && python3.8 get-pip.py pip==21.3 \
+  && python3.9 get-pip.py pip==23.2.1 --break-system-packages \
+  && python3.10 get-pip.py pip==23.2.1 --break-system-packages \
+  && python3.11 get-pip.py pip==23.2.1 --break-system-packages \
+  && python3.12 get-pip.py pip==23.2.1  --break-system-packages \
  && rm get-pip.py

 RUN apt-get install -y --no-install-recommends \
@@ -20,12 +27,14 @@ RUN apt-get install -y --no-install-recommends \
        build-essential \
        zip

-RUN python3.6 --version
-RUN python3.7 --version
-RUN python3.8 --version
+RUN python3.9 --version
+RUN python3.10 --version
+RUN python3.11 --version
+RUN python3.12 --version

-RUN pip3.6 install setuptools setuptools-rust
-RUN pip3.7 install setuptools setuptools-rust
-RUN pip3.8 install setuptools setuptools-rust
+RUN pip3.9 install setuptools setuptools-rust
+RUN pip3.10 install setuptools setuptools-rust
+RUN pip3.11 install setuptools setuptools-rust --break-system-packages
+RUN pip3.12 install setuptools setuptools-rust --break-system-packages

-RUN pip3 install tox pytest
+RUN pip3 install tox pytest --break-system-packages
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -3,4 +3,4 @@ History
 =======


-* First release on PyPI.
+* 0.2.1 version usada en produccion.
--- a/Makefile.dev
+++ b/Makefile.dev
@@ -15,7 +15,7 @@ dev-shell:
 	docker run --rm -ti -v "$(PWD):/app" -w /app --name facho-cli facho bash

 test:
-	docker run -t -v $(PWD):/app -w /app facho sh -c 'cd /app; python3.7 setup.py test'
+	docker run -t -v $(PWD):/app -w /app facho sh -c 'cd /app; python3.12 setup.py test'

 tox:
 	docker run -it -v $(PWD)/:/app -w /app facho tox
--- a/examples/generate-invoice-from-cli.py
+++ b/examples/generate-invoice-from-cli.py
@@ -14,7 +14,7 @@ from facho.fe import fe
 from datetime import datetime, date

 # Datos del fomulario del SET de pruebas
-INVOICE_AUTHORIZATION = '181360000001' #Número suministrado por la Dian en el momento de la creación del SET de Pruebas  
+INVOICE_AUTHORIZATION = '181360000001'  # Número suministrado por la Dian en el momento de la creación del SET de Pruebas
 ID_SOFTWARE = '57bcb6d1-c591-5a90-b80a-cb030ec91440' #Id suministrado por la Dian en el momento de la creación del SET de Pruebas  
 PIN = '19642' #Número creado por la empresa para poder crear el SET de pruebas
 CLAVE_TECNICA = 'fc9eac422eba16e21ffd8c5f94b3f30a6e38162d' ##Id suministrado por la Dian en el momento de la creación del SET de Pruebas  
@@ -36,6 +36,7 @@ def extensions(inv):
                                                                'SETP', 990000000, 995000000)#del SET de pruebas
    return [security_code, authorization_provider, cufe, software_provider, inv_authorization]

+
 def invoice():
    # factura de venta nacional
    inv = form.Invoice('01')
@@ -49,16 +50,17 @@ def invoice():
    inv.set_operation_type('10')
    inv.set_supplier(form.Party(
        legal_name = 'Nombre registrado de la empresa',
-        name = 'Nombre comercial o él mismo nombre registrado',
-        ident = form.PartyIdentification('nit_empresa', 'digito_verificación', '31'),
+        name='Nombre comercial o él mismo nombre registrado',
+        ident=form.PartyIdentification(
+            'nit_empresa', 'digito_verificación', '31'),
        # obligaciones del contribuyente ver DIAN:FAK26
-        responsability_code = form.Responsability(['O-07', 'O-14', 'O-48']),
+        responsability_code=form.Responsability(['ZZ', 'O-14', 'O-48']),
        # ver DIAN:FAJ28
-        responsability_regime_code = '48',
+        responsability_regime_code='48',
        # tipo de organizacion juridica ver DIAN:6.2.3
-        organization_code = '1',
-        email = "correoempresa@correoempresa.correo",
-        address = form.Address(
+        organization_code='1',
+        email="correoempresa@correoempresa.correo",
+        address=form.Address(
            '', '', form.City('05001', 'Medellín'),
            form.Country('CO', 'Colombia'),
            form.CountrySubentity('05', 'Antioquia')),
@@ -76,42 +78,43 @@ def invoice():
            '', '', form.City('05001', 'Medellín'),
            form.Country('CO', 'Colombia'),
            form.CountrySubentity('05', 'Antioquia')),
-		#tax_scheme = form.TaxScheme('01', 'IVA')
+        #  tax_scheme = form.TaxScheme('01', 'IVA')
    ))
    # asignar metodo de pago    
    inv.set_payment_mean(form.PaymentMean(
        # metodo de pago ver DIAN:3.4.1
-        id = '1',
-        # codigo correspondiente al medio de pago ver DIAN:3.4.2
-        code = '20',
-        # fecha de vencimiento de la factura        
-        due_at = datetime.now(),
-        # identificador numerico
-        payment_id = '2'
+        id='1',
+        # codigocorrespondientealmediodepagoverDIAN:3.4.2
+        code='20',
+        # fechadevencimientodelafactura
+        due_at=datetime.now(),
+        # identificadornumerico
+        payment_id='2'
    ))
    # adicionar una linea al documento
-    inv.add_invoice_line(form.InvoiceLine(
-        quantity = form.Quantity(int(20.5), '94'),
-        # item general de codigo 999
-        description = 'productO3',
-        item = form.StandardItem('test', 9999),
-        price = form.Price(
-            # precio base del item (sin iva)
-            amount = form.Amount(200.00),
-            # ver DIAN:6.3.5.1
-            type_code = '01',
-            type = 'x'
-        ),
-        tax = form.TaxTotal(
-            subtotals = [
-                form.TaxSubTotal(
-                    percent = 19.00,
-                    scheme=form.TaxScheme('01')
-                )
-            ]
-        )
-    ))
+    inv.add_invoice_line(
+        form.InvoiceLine(
+            quantity=form.Quantity(int(20.5), '94'),
+            # item general de codigo 999
+            description='productO3',
+            sitem=form.StandardItem('test', 9999),
+            price=form.Price(
+                # precio base del item (sin iva)
+                amount=form.Amount(200.00),
+                # ver DIAN:6.3.5.1
+                type_code='01',
+                type='x'
+            ),
+            tax=form.TaxTotal(
+                subtotals=[
+                    form.TaxSubTotal(
+                        percent=19.00,
+                        scheme=form.TaxScheme('01')
+                    )]
+            )
+        ))
    return inv

+
 def document_xml():
    return form_xml.DIANInvoiceXML
--- a/examples/use-as-lib.py
+++ b/examples/use-as-lib.py
@@ -1,109 +1,127 @@
 # importar libreria de modelos
+from facho import fe, form_xml
 import facho.fe.form as form
-import facho.fe.form_xml
+import datetime
+
+PRIVATE_KEY_PATH = 'ruta a mi llave privada'
+PRIVATE_PASSPHRASE = 'clave de la llave privada'

-PRIVATE_KEY_PATH='ruta a mi llave privada'
-PRIVATE_PASSPHRASE='clave de la llave privada'

 # consultar las extensiones necesarias
 def extensions(inv):
-    security_code = fe.DianXMLExtensionSoftwareSecurityCode('id software', 'pin', inv.invoice_ident)
+    security_code = fe.DianXMLExtensionSoftwareSecurityCode(
+        'id software', 'pin', inv.invoice_ident)
    authorization_provider = fe.DianXMLExtensionAuthorizationProvider()
-    cufe = fe.DianXMLExtensionCUFE(inv, fe.DianXMLExtensionCUFE.AMBIENTE_PRUEBAS,
-                                   'clave tecnica')
+    cufe = fe.DianXMLExtensionCUFE(
+        inv, fe.DianXMLExtensionCUFE.AMBIENTE_PRUEBAS,
+        'clave tecnica')
    nit = form.PartyIdentification('nit', '5', '31')
-    software_provider = fe.DianXMLExtensionSoftwareProvider(nit, nit.dv, 'id software')
-    inv_authorization = fe.DianXMLExtensionInvoiceAuthorization('invoice autorization',
-                                                                datetime(2019, 1, 19),
-                                                                datetime(2030, 1, 19),
-                                                                'SETP', 990000001, 995000000)
-    return [security_code, authorization_provider, cufe, software_provider, inv_authorization]
+    software_provider = fe.DianXMLExtensionSoftwareProvider(
+        nit, nit.dv, 'id software')
+    inv_authorization = fe.DianXMLExtensionInvoiceAuthorization(
+        'invoice autorization',
+        datetime(2019, 1, 19),
+        datetime(2030, 1, 19),
+        'SETP', 990000001, 995000000)
+    return [
+        security_code,
+        authorization_provider,
+        cufe, software_provider,
+        inv_authorization
+    ]
+

 # generar documento desde modelo a ruta indicada
 def generate_document(invoice, filepath):
    xml = form_xml.DIANInvoiceXML(invoice)
    for extension in extensions(invoice):
        xml.add_extension(extension)
-    form_xml.utils.DIANWriteSigned(xml, filepath, PRIVATE_KEY_PATH, PRIVATE_PASSPHRASE, True)
+    form_xml.utils.DIANWriteSigned(
+        xml, filepath, PRIVATE_KEY_PATH, PRIVATE_PASSPHRASE, True)
+

 # Modelars las facturas
 # ...

 # factura de venta nacional
 inv = form.NationalSalesInvoice()
+
 # asignar periodo de facturacion
 inv.set_period(datetime.now(), datetime.now())
+
 # asignar fecha de emision de la factura
+
 inv.set_issue(datetime.now())
 # asignar prefijo y numero del documento
+
 inv.set_ident('SETP990003033')
 # asignar tipo de operacion ver DIAN:6.1.5
 inv.set_operation_type('10')
+
 # asignar proveedor
 inv.set_supplier(form.Party(
-    legal_name = 'FACHO SOS',
-    name = 'FACHO SOS',
-    ident = form.PartyIdentification('900579212', '5', '31'),
+    legal_name='FACHOSOS',
+    name='FACHOSOS',
+    ident=form.PartyIdentification('900579212', '5', '31'),
    # obligaciones del contribuyente ver DIAN:FAK26
-    responsability_code = form.Responsability(['O-07', 'O-09', 'O-14', 'O-48']),
+    responsability_code=form.Responsability(['ZZ', 'O-09', 'O-14', 'O-48']),
    # ver DIAN:FAJ28
-    responsability_regime_code = '48',
+    responsability_regime_code='48',
    # tipo de organizacion juridica ver DIAN:6.2.3
-    organization_code = '1',
-    email = "sdds@sd.com",
-    address = form.Address(
-        name = '',
-        street = '',
-        city = form.City('05001', 'Medellín'),
-        country = form.Country('CO', 'Colombia'),
-        countrysubentity = form.CountrySubentity('05', 'Antioquia'))
+    organization_code='1',
+    email="sdds@sd.com",
+    address=form.Address(
+        name='',
+        street='',
+        city=form.City('05001', 'Medellín'),
+        country=form.Country('CO', 'Colombia'),
+        countrysubentity=form.CountrySubentity('05', 'Antioquia'))
 ))
+
 inv.set_customer(form.Party(
-    legal_name = 'facho-customer',
-    name = 'facho-customer',
-    ident = form.PartyIdentification('999999999', '', '13'),
-    responsability_code = form.Responsability(['R-99-PN']),
-    responsability_regime_code = '49',
-    organization_code = '2',
-    email = "sdds@sd.com",
-    address = form.Address(
-        name = '',
-        street = '',
-        city = form.City('05001', 'Medellín'),
-        country = form.Country('CO', 'Colombia'),
-        countrysubentity = form.CountrySubentity('05', 'Antioquia'))
+    legal_name='facho-customer',
+    name='facho-customer',
+    ident=form.PartyIdentification('999999999', '', '13'),
+    responsability_code=form.Responsability(['R-99-PN']),
+    responsability_regime_code='49',
+    organization_code='2',
+    email="sdds@sd.com",
+    address=form.Address(
+        name='',
+        street='',
+        city=form.City('05001', 'Medellín'),
+        country=form.Country('CO', 'Colombia'),
+        countrysubentity=form.CountrySubentity('05', 'Antioquia'))
 ))
 # asignar metodo de pago
 inv.set_payment_mean(form.PaymentMean(
    # metodo de pago ver DIAN:3.4.1
-    id = '1',
+    id='1',
    # codigo correspondiente al medio de pago ver DIAN:3.4.2
-    code = '10',
+    code='10',
    # fecha de vencimiento de la factura
-    due_at = datetime.now(),
-    
+    due_at=datetime.now(),
    # identificador numerico
-    payment_id = '1'
+    payment_id='1'
 ))
 # adicionar una linea al documento
 inv.add_invoice_line(form.InvoiceLine(
-    quantity = form.Quantity(1, '94'),
-    description = 'producto facho',
+    quantity=form.Quantity(1, '94'),
+    description='producto facho',
    # item general de codigo 999
-    item = form.StandardItem('test', 9999),
-    price = form.Price(
+    item=form.StandardItem('test', 9999),
+    price=form.Price(
        # precio base del tiem
-        amount = form.Amount(100.00),
+        amount=form.Amount(100.00),
        # ver DIAN:6.3.5.1
-        type_code = '01',
-        type = 'x'
+        type_code='01',
+        type='x'
    ),
-    tax = form.TaxTotal(
-        subtotals = [
+    tax=form.TaxTotal(
+        subtotals=[
            form.TaxSubTotal(
-                percent = 19.00,
-            )
-        ]
+                percent=19.00,
+            )]
    )
 ))

--- a/experimental/facho-signer/src/xmlusigned.xml
+++ b/experimental/facho-signer/src/xmlusigned.xml
@@ -76,7 +76,7 @@
      <cac:PartyTaxScheme>
        <cbc:RegistrationName>NEUROTEC TECNOLOGIA S.A.S</cbc:RegistrationName>
        <cbc:CompanyID schemeAgencyName="CO, DIAN (Dirección de Impuestos y Aduanas Nacionales)" schemeAgencyID="195" schemeID="5" schemeName="31">900579212</cbc:CompanyID>
-        <cbc:TaxLevelCode listName="48">O-07;O-09;O-14;O-48</cbc:TaxLevelCode>
+        <cbc:TaxLevelCode listName="48">ZZ;O-09;O-14;O-48</cbc:TaxLevelCode>
        <cac:TaxScheme/>
      </cac:PartyTaxScheme>
      <cac:Contact>
--- a/facho/cli.py
+++ b/facho/cli.py
@@ -259,14 +259,14 @@ def generate_invoice(private_key, passphrase, scriptname, generate=False, ssl=Tr
    spec.loader.exec_module(module)

    import facho.fe.form as form
-    from facho.fe.form_xml import DIANInvoiceXML, DIANWriteSigned,DIANWrite
+    from facho.fe.form_xml import DIANInvoiceXML, DIANWriteSigned, DIANWrite, DIANSupportDocumentXML
    from facho import fe

    try:
        invoice_xml = module.document_xml()
    except AttributeError:
-        invoice_xml = DIANInvoiceXML
-
+        #invoice_xml = DIANInvoiceXML
+        invoice_xml = DIANSupportDocumentXML 
    print("Using document xml:", invoice_xml)
    invoice = module.invoice()
    invoice.calculate()
--- a/facho/facho.py
+++ b/facho/facho.py
@@ -1,12 +1,11 @@
 # This file is part of facho.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
-
 from lxml import etree
-from lxml.etree import Element, SubElement, tostring
+from lxml.etree import Element, tostring
 import re
 from collections import defaultdict
 from copy import deepcopy
-from pprint import pprint
+

 class FachoValueInvalid(Exception):
    def __init__(self, xpath):
@@ -32,7 +31,10 @@ class LXMLBuilder:

    def __init__(self, nsmap):
        self.nsmap = nsmap
-        self._re_node_expr = re.compile(r'^(?P<path>((?P<ns>\w+):)?(?P<tag>[a-zA-Z0-9_-]+))(?P<attrs>\[.+\])?')
+        self._re_node_expr = \
+            re.compile(
+                r'^(?P<path>((?P<ns>\w+):)?(?P<tag>[a-zA-Z0-9_-]+))'
+                r'(?P<attrs>\[.+\])?')
        self._re_attrs = re.compile(r'(\w+)\s*=\s*\"?(\w+)\"?')

    def match_expression(self, node_expr):
@@ -121,7 +123,7 @@ class LXMLBuilder:
        elem.attrib[key] = value

    @classmethod
-    def remove_attributes(cls, elem, keys, exclude = []):
+    def remove_attributes(cls, elem, keys, exclude=[]):
        for key in keys:
            if key in exclude:
                continue
@@ -143,7 +145,8 @@ class LXMLBuilder:
            self.remove_attributes(el, keys, exclude=['facho_optional'])

            is_optional = el.get('facho_optional', 'False') == 'True'
-            if is_optional and el.getchildren() == [] and el.keys() == ['facho_optional']:
+            if is_optional and el.getchildren() == [] and el.keys() == [
+                    'facho_optional']:
                el.getparent().remove(el)

        return tostring(elem, **attrs).decode('utf-8')
@@ -153,14 +156,15 @@ class FachoXML:
    """
    Decora XML con funciones de consulta XPATH de un solo elemento
    """
-    def __init__(self, root, builder=None, nsmap=None, fragment_prefix='',fragment_root_element=None):
+    def __init__(self, root, builder=None, nsmap=None, fragment_prefix='',
+                 fragment_root_element=None):
        if builder is None:
            self.builder = LXMLBuilder(nsmap)
        else:
            self.builder = builder

        self.nsmap = nsmap
-        
+
        if isinstance(root, str):
            self.root = self.builder.build_element_from_string(root, nsmap)
        else:
@@ -180,16 +184,19 @@ class FachoXML:
    def root_namespace(self):
        return etree.QName(self.root).namespace

+    def root_localname(self):
+        return etree.QName(self.root).localname
+
    def append_element(self, elem, new_elem):
-        #elem = self.find_or_create_element(xpath, append=append)
-        #self.builder.append(elem, new_elem)
+        # elem = self.find_or_create_element(xpath, append=append)
+        # self.builder.append(elem, new_elem)
        self.builder.append(elem, new_elem)

    def add_extension(self, extension):
        extension.build(self)

-
-    def fragment(self, xpath, append=False, append_not_exists=False):
+    def fragment(
+            self, xpath, append=False, append_not_exists=False):
        nodes = xpath.split('/')
        nodes.pop()
        root_prefix = '/'.join(nodes)
@@ -199,7 +206,9 @@ class FachoXML:

        if parent is None:
            parent = self.find_or_create_element(xpath, append=append)
-        return FachoXML(parent, nsmap=self.nsmap, fragment_prefix=root_prefix, fragment_root_element=self.root)
+        return FachoXML(
+            parent, nsmap=self.nsmap, fragment_prefix=root_prefix,
+            fragment_root_element=self.root)

    def register_alias_xpath(self, alias, xpath):
        self.xpath_for[alias] = xpath
@@ -235,7 +244,8 @@ class FachoXML:
        """
        xpath = self._path_xpath_for(xpath)
        node_paths = xpath.split('/')
-        node_paths.pop(0) #remove empty /
+        # remove empty /
+        node_paths.pop(0)
        root_tag = node_paths.pop(0)

        root_node = self.builder.build_from_expression(root_tag)
@@ -243,10 +253,10 @@ class FachoXML:
            # restaurar ya que no es la raiz y asignar actual como raiz
            node_paths.insert(0, root_tag)
            root_node = self.root
-            
+
        if not self.builder.same_tag(root_node.tag, self.root.tag):
-            
-            raise ValueError('xpath %s must be absolute to /%s' % (xpath, self.root.tag))
+            raise ValueError('xpath %s must be absolute to /%s' % (
+                xpath, self.root.tag))

        # crea jerarquia segun xpath indicado
        parent = None
@@ -256,8 +266,8 @@ class FachoXML:
        for node_path in node_paths:
            node_expr = self.builder.match_expression(node_path)
            node = self.builder.build_from_expression(node_path)
-
-            child = self.builder.find_relative(current_elem, node_expr['path'], self.nsmap)
+            child = self.builder.find_relative(
+                current_elem, node_expr['path'], self.nsmap)

            parent = current_elem
            if child is not None:
@@ -268,11 +278,12 @@ class FachoXML:

        node_expr = self.builder.match_expression(node_tag)
        node = self.builder.build_from_expression(node_tag)
-        child = self.builder.find_relative(current_elem, node_expr['path'], self.nsmap)
+        child = self.builder.find_relative(
+            current_elem, node_expr['path'], self.nsmap)
        parent = current_elem
        if child is not None:
            current_elem = child
-           
+
        if parent == current_elem:
            self.builder.append(parent, node)
            return node
@@ -289,9 +300,10 @@ class FachoXML:
                self.builder.append(parent, node)
                return node

-            if self.builder.is_attribute(last_slibing, 'facho_placeholder', 'True'):
+            if self.builder.is_attribute(
+                    last_slibing, 'facho_placeholder', 'True'):
                self._remove_facho_attributes(last_slibing)
-                return last_slibing 
+                return last_slibing
            self.builder.append_next(last_slibing, node)
            return node

@@ -302,7 +314,8 @@ class FachoXML:
        self._remove_facho_attributes(current_elem)
        return current_elem

-    def set_element_validator(self, xpath, validator = False):
+    def set_element_validator(
+            self, xpath, validator=False):
        """
        validador al asignar contenido a xpath indicado

@@ -315,8 +328,9 @@ class FachoXML:
            self._validators[key] = lambda v, attrs: True
        else:
            self._validators[key] = validator
-        
-    def set_element(self, xpath, content, **attrs):
+
+    def set_element(
+            self, xpath, content, **attrs):
        """
        asigna contenido ubicado por ruta tipo XPATH.
        @param xpath ruta tipo XPATH
@@ -358,7 +372,8 @@ class FachoXML:
                self.builder.set_attribute(elem, k, str(v))
        return self

-    def get_element_attribute(self, xpath, attribute, multiple=False):
+    def get_element_attribute(
+            self, xpath, attribute, multiple=False):
        elem = self.get_element(xpath, multiple=multiple)

        if elem is None:
@@ -374,90 +389,12 @@ class FachoXML:

    def get_element(self, xpath, multiple=False):
        xpath = self.fragment_prefix + self._path_xpath_for(xpath)
-        return self.builder.xpath(self.root, xpath, multiple=multiple)
-
-    def get_element_text(self, xpath, format_=str, multiple=False):
-        xpath = self.fragment_prefix + self._path_xpath_for(xpath)
-        # MACHETE(bit4bit) al usar ./ queda ../
-        xpath = re.sub(r'^\.\.+', '.', xpath)
-
-        elem = self.builder.xpath(self.root, xpath, multiple=multiple)
-        if multiple:
-            vals = []
-            for e in elem:
-                text = self.builder.get_text(e)
-                if text is not None:
-                    vals.append(format_(text))
-            return vals
-        else:
-            text = self.builder.get_text(elem)
-            if text is None:
-                return None
-            return format_(text)
-
-    def get_element_text_or_attribute(self, xpath, default=None, multiple=False, raise_on_fail=False):
-        parts = xpath.split('/')
-        is_attribute =  parts[-1].startswith('@')
-        if is_attribute:
-            attribute_name = parts.pop(-1).lstrip('@')
-            element_path = "/".join(parts)
-            try:
-                val = self.get_element_attribute(element_path, attribute_name, multiple=multiple)
-                if val is None:
-                    return default
-                return val
-            except KeyError as e:
-                if raise_on_fail:
-                    raise e
-                return default
-            except ValueError as e:
-                if raise_on_fail:
-                    raise e
-                return default
-        else:
-            try:
-                val = self.get_element_text(xpath, multiple=multiple)
-                if val is None:
-                    return default
-                return val
-            except ValueError as e:
-                if raise_on_fail:
-                    raise e
-                return default
-
-    def get_elements_text_or_attributes(self, xpaths, raise_on_fail=True):
-        """
-        returna el contenido o attributos de un conjunto de XPATHS
-        si algun XPATH es una tupla se retorna el primer elemento del mismo.
-        """
-        vals = []
-        for xpath in xpaths:
-            if isinstance(xpath, tuple):
-                val = xpath[0]
-            else:
-                val = self.get_element_text_or_attribute(xpath, raise_on_fail=raise_on_fail)
-            vals.append(val)
-        return vals
-
-    def exist_element(self, xpath):
-        elem = self.get_element(xpath)
-
-        # no se encontro elemento
+        elem = self.builder.xpath(self.root, xpath)
        if elem is None:
-            return False
+            raise AttributeError('xpath %s invalid' % (xpath))

-        # el placeholder no ha sido populado
-        if elem.get('facho_placeholder') == 'True':
-            return False
-
-        # el valor opcional no ha sido populado
-        if elem.get('facho_optional') == 'True':
-            return False
-
-        return True
-
-    def _remove_facho_attributes(self, elem):
-        self.builder.remove_attributes(elem, ['facho_optional', 'facho_placeholder'])
+        text = self.builder.get_text(elem)
+        return str(text)

    def tostring(self, **kw):
        return self.builder.tostring(self.root, **kw)
@@ -469,15 +406,17 @@ class FachoXML:
        root = self.root
        if self.fragment_root_element is not None:
            root = self.fragment_root_element
-            
+
        if isinstance(self.nsmap, dict):
            nsmap = dict(map(reversed, self.nsmap.items()))
            ns = nsmap[etree.QName(root).namespace] + ':'

        if self.fragment_root_element is not None:
-            new_xpath = '/' + ns + etree.QName(root).localname + '/' + etree.QName(self.root).localname + '/' + xpath.lstrip('/')
+            new_xpath = '/' + ns + etree.QName(root).localname + '/' + \
+                etree.QName(self.root).localname + '/' + xpath.lstrip('/')
        else:
-            new_xpath = '/' + ns + etree.QName(root).localname + '/' + xpath.lstrip('/')
+            new_xpath = '/' + ns + etree.QName(root).localname + '/' + \
+                xpath.lstrip('/')
        return new_xpath

    def __str__(self):
--- a/facho/fe/init.py
+++ b/facho/fe/init.py
@@ -5,6 +5,7 @@ from .fe import DianXMLExtensionSigner
 from .fe import DianXMLExtensionSoftwareSecurityCode
 from .fe import DianXMLExtensionCUFE
 from .fe import DianXMLExtensionCUDE
+from .fe import DianXMLExtensionCUDS
 from .fe import DianXMLExtensionInvoiceAuthorization
 from .fe import DianXMLExtensionSoftwareProvider
 from .fe import DianXMLExtensionAuthorizationProvider
--- a/facho/fe/client/wsse/signature.py
+++ b/facho/fe/client/wsse/signature.py
@@ -234,9 +234,10 @@ def _append_timestamp(security, expires_dt=None):
    if expires_dt is None:
        expires_dt = timedelta(seconds=6000)

+    timestamp = datetime.now()
    etimestamp = utils.WSU.Timestamp({'{http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd}Id': utils.get_unique_id()})
-    etimestamp.append(utils.WSU.Created(get_timestamp()))
-    etimestamp.append(utils.WSU.Expires(get_timestamp(delta=expires_dt)))
+    etimestamp.append(utils.WSU.Created(get_timestamp(timestamp=timestamp)))
+    etimestamp.append(utils.WSU.Expires(get_timestamp(timestamp=timestamp, delta=expires_dt)))
    security.insert(0, etimestamp)
    if etree.LXML_VERSION[:2] >= (3, 5):
        etree.cleanup_namespaces(security,
--- a/facho/fe/data/dian/codelist/TarifaImpuestoReteIVA-2.1.gc
+++ b/facho/fe/data/dian/codelist/TarifaImpuestoReteIVA-2.1.gc
@@ -1,50 +1,61 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- DIAN Genericode listas de validacion :: Ultima modificación 18-02-2019 - evb-->
-<gc:CodeList xmlns:gc="http://docs.oasis-open.org/codelist/ns/genericode/1.0/">
-   <Identification>
-      <ShortName>TarifaImpuestos</ShortName>
-      <LongName xml:lang="es">Tarifas por Impuesto</LongName>
-      <Version>1</Version>
-      <CanonicalUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TarifaImpuestos</CanonicalUri>
-      <CanonicalVersionUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TarifaImpuestos-2.1</CanonicalVersionUri>
-      <LocationUri>http://dian.gov.co/ubl/os-ubl-2.0/cl/gc/default/TarifaImpuestos-2.1.gc</LocationUri>
-      <Agency>
-         <LongName xml:lang="es">DIAN (Dirección de Impuestos y Aduanas Nacionales)</LongName>
-         <Identifier>195</Identifier>
-      </Agency>
-   </Identification>
-   <ColumnSet>
-      <Column Id="code" Use="required">
-         <ShortName>Code</ShortName>
-         <LongName xml:lang="es">Codigo Comun</LongName>
-         <Data Type="normalizedString"/>
-      </Column>
-      <Column Id="name" Use="required">
-         <ShortName>Name</ShortName>
-         <LongName xml:lang="es">Nombre</LongName>
-         <Data Type="string"/>
-      </Column>
-      <Column Id="description" Use="required">
-         <ShortName>Description</ShortName>
-         <LongName xml:lang="es">Descripcion</LongName>
-         <Data Type="string"/>
-      </Column>
-      <Key Id="codeKey">
-         <ShortName>CodeKey</ShortName>
-         <ColumnRef Ref="code"/>
-      </Key>
-   </ColumnSet>
-   <SimpleCodeList>
-      <Row>
-         <Value ColumnRef="code">
-            <SimpleValue>15.00</SimpleValue>
-         </Value>
-         <Value ColumnRef="name">
-            <SimpleValue>ReteIVA</SimpleValue>
-         </Value>
-         <Value ColumnRef="description">
-            <SimpleValue>ReteIVA</SimpleValue>
-         </Value>
-      </Row>
-   </SimpleCodeList>
-</gc:CodeList>
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- DIAN Genericode listas de validacion :: Ultima modificación 18-02-2019 - evb-->
+<gc:CodeList xmlns:gc="http://docs.oasis-open.org/codelist/ns/genericode/1.0/">
+   <Identification>
+      <ShortName>TarifaImpuestos</ShortName>
+      <LongName xml:lang="es">Tarifas por Impuesto</LongName>
+      <Version>1</Version>
+      <CanonicalUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TarifaImpuestos</CanonicalUri>
+      <CanonicalVersionUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TarifaImpuestos-2.1</CanonicalVersionUri>
+      <LocationUri>http://dian.gov.co/ubl/os-ubl-2.0/cl/gc/default/TarifaImpuestos-2.1.gc</LocationUri>
+      <Agency>
+         <LongName xml:lang="es">DIAN (Dirección de Impuestos y Aduanas Nacionales)</LongName>
+         <Identifier>195</Identifier>
+      </Agency>
+   </Identification>
+   <ColumnSet>
+      <Column Id="code" Use="required">
+         <ShortName>Code</ShortName>
+         <LongName xml:lang="es">Codigo Comun</LongName>
+         <Data Type="normalizedString"/>
+      </Column>
+      <Column Id="name" Use="required">
+         <ShortName>Name</ShortName>
+         <LongName xml:lang="es">Nombre</LongName>
+         <Data Type="string"/>
+      </Column>
+      <Column Id="description" Use="required">
+         <ShortName>Description</ShortName>
+         <LongName xml:lang="es">Descripcion</LongName>
+         <Data Type="string"/>
+      </Column>
+      <Key Id="codeKey">
+         <ShortName>CodeKey</ShortName>
+         <ColumnRef Ref="code"/>
+      </Key>
+   </ColumnSet>
+   <SimpleCodeList>
+      <Row>
+         <Value ColumnRef="code">
+            <SimpleValue>15.00</SimpleValue>
+         </Value>
+         <Value ColumnRef="name">
+            <SimpleValue>ReteIVA</SimpleValue>
+         </Value>
+         <Value ColumnRef="description">
+            <SimpleValue>ReteIVA</SimpleValue>
+         </Value>
+      </Row>
+      <Row>
+         <Value ColumnRef="code">
+            <SimpleValue>100.00</SimpleValue>
+         </Value>
+         <Value ColumnRef="name">
+            <SimpleValue>ReteIVA</SimpleValue>
+         </Value>
+         <Value ColumnRef="description">
+            <SimpleValue>ReteIVA</SimpleValue>
+         </Value>
+      </Row>
+   </SimpleCodeList>
+</gc:CodeList>
--- a/facho/fe/data/dian/codelist/TarifaImpuestoReteFuente-2.1.gc
+++ b/facho/fe/data/dian/codelist/TarifaImpuestoReteFuente-2.1.gc
--- a/facho/fe/data/dian/codelist/TipoDocumento-2.1.gc
+++ b/facho/fe/data/dian/codelist/TipoDocumento-2.1.gc
@@ -1,74 +1,100 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- DIAN Genericode listas de valores:: Ultima modificación 18-02-2019 - evb-->
-<gc:CodeList xmlns:gc="http://docs.oasis-open.org/codelist/ns/genericode/1.0/">
-	<Identification>
-		<ShortName>TipoDocumento</ShortName>
-		<LongName xml:lang="es">Tipo de Documento</LongName>
-		<Version>1</Version>
-		<CanonicalUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TipoDocumento</CanonicalUri>
-		<CanonicalVersionUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TipoDocumento-2.1</CanonicalVersionUri>
-		<LocationUri>http://dian.gov.co/ubl/os-ubl-2.0/cl/gc/default/TipoDocumento-2.1.gc</LocationUri>
-		<Agency>
-			<LongName xml:lang="es">DIAN (Dirección de Impuestos y Aduanas Nacionales)</LongName>
-			<Identifier>195</Identifier>
-		</Agency>
-	</Identification>
-	<ColumnSet>
-		<Column Id="code" Use="required">
-			<ShortName>Code</ShortName>
-			<LongName xml:lang="es">Codigo Comun</LongName>
-			<Data Type="normalizedString"/>
-		</Column>
-		<Column Id="name" Use="required">
-			<ShortName>Name</ShortName>
-			<LongName xml:lang="es">Nombre</LongName>
-			<Data Type="string"/>
-		</Column>
-		<Key Id="codeKey">
-			<ShortName>CodeKey</ShortName>
-			<ColumnRef Ref="code"/>
-		</Key>
-	</ColumnSet>
-	<SimpleCodeList>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>01</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Factura de Venta Nacional</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>02</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Factura de Exportación </SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>03</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Factura de Contingencia</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>91</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Nota Crédito</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>92</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Nota Débito</SimpleValue>
-			</Value>
-		</Row>
-	</SimpleCodeList>
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- DIAN Genericode listas de valores: Ultima modificación 03-04-2022 - wcbr-->
+<gc:CodeList xmlns:gc="http://docs.oasis-open.org/codelist/ns/genericode/1.0/">
+	<Identification>
+		<ShortName>TipoDocumento</ShortName>
+		<LongName xml:lang="es">Tipo de Documento</LongName>
+		<Version>1</Version>
+		<CanonicalUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TipoDocumento</CanonicalUri>
+		<CanonicalVersionUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TipoDocumento-2.1</CanonicalVersionUri>
+		<LocationUri>http://dian.gov.co/ubl/os-ubl-2.0/cl/gc/default/TipoDocumento-2.1.gc</LocationUri>
+		<Agency>
+			<LongName xml:lang="es">DIAN (Dirección de Impuestos y Aduanas Nacionales)</LongName>
+			<Identifier>195</Identifier>
+		</Agency>
+	</Identification>
+	<ColumnSet>
+		<Column Id="code" Use="required">
+			<ShortName>Code</ShortName>
+			<LongName xml:lang="es">Codigo Comun</LongName>
+			<Data Type="normalizedString"/>
+		</Column>
+		<Column Id="name" Use="required">
+			<ShortName>Name</ShortName>
+			<LongName xml:lang="es">Nombre</LongName>
+			<Data Type="string"/>
+		</Column>
+		<Key Id="codeKey">
+			<ShortName>CodeKey</ShortName>
+			<ColumnRef Ref="code"/>
+		</Key>
+	</ColumnSet>
+	<SimpleCodeList>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>01</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>Factura electrónica de Venta</SimpleValue>
+			</Value>
+			<Value ColumnRef="description">
+				<SimpleValue>Tipos de factura</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>02</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>Factura electrónica de venta con propósito de exportación</SimpleValue>
+			</Value>
+			<Value ColumnRef="description">
+				<SimpleValue>Tipos de factura</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>03</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>Factura de talonario o papel con numeración de contingencia.</SimpleValue>
+			</Value>
+			<Value ColumnRef="description">
+				<SimpleValue>Tipos de factura</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>04</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>Factura electrónica de Venta  por Contingencia DIAN</SimpleValue>
+			</Value>
+			<Value ColumnRef="description">
+				<SimpleValue>Tipos de factura</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>91</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>Nota Crédito</SimpleValue>
+			</Value>
+			<Value ColumnRef="description">
+				<SimpleValue>Exclusivo en referencias a documentos (elementos DocumentReference)</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>92</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>Nota Débito</SimpleValue>
+			</Value>
+			<Value ColumnRef="description">
+				<SimpleValue>Exclusivo en referencias a documentos (elementos DocumentReference)</SimpleValue>
+			</Value>
+		</Row>
+	</SimpleCodeList>
 </gc:CodeList>
--- a/facho/fe/data/dian/codelist/TipoImpuesto-2.1.gc
+++ b/facho/fe/data/dian/codelist/TipoImpuesto-2.1.gc
@@ -1,162 +1,171 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- DIAN Genericode listas de valores:: Ultima modificación 18-02-2019 - evb-->
-<gc:CodeList xmlns:gc="http://docs.oasis-open.org/codelist/ns/genericode/1.0/">
-	<Identification>
-		<ShortName>TipoImpuesto</ShortName>
-		<LongName xml:lang="es">Tipo de Tributos</LongName>
-		<Version>1</Version>
-		<CanonicalUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TipoImpuesto</CanonicalUri>
-		<CanonicalVersionUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TipoImpuesto-2.1</CanonicalVersionUri>
-		<LocationUri>http://dian.gov.co/ubl/os-ubl-2.0/cl/gc/default/TipoImpuesto-2.1.gc</LocationUri>
-		<Agency>
-			<LongName xml:lang="es">DIAN (Dirección de Impuestos y Aduanas Nacionales)</LongName>
-			<Identifier>195</Identifier>
-		</Agency>
-	</Identification>
-	<ColumnSet>
-		<Column Id="code" Use="required">
-			<ShortName>Code</ShortName>
-			<LongName xml:lang="es">Codigo Comun</LongName>
-			<Data Type="normalizedString"/>
-		</Column>
-		<Column Id="name" Use="required">
-			<ShortName>Name</ShortName>
-			<LongName xml:lang="es">Nombre</LongName>
-			<Data Type="string"/>
-		</Column>
-		<Key Id="codeKey">
-			<ShortName>CodeKey</ShortName>
-			<ColumnRef Ref="code"/>
-		</Key>
-	</ColumnSet>
-	<SimpleCodeList>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>01</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>IVA</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>02</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>IC</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>03</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>ICA</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>04</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>INC</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>05</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>ReteIVA</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>06</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>ReteFuente</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>07</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>ReteICA</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>08</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>ReteCREE</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>20</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>FtoHorticultura</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>21</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Timbre</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>22</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Bolsas</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>23</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>INCarbono</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>24</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>INCombustibles</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>25</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Sobretasa Combustibles</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>26</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Sordicom</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>ZZ</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Nombre de la figura tributaria</SimpleValue>
-			</Value>
-		</Row>
-	</SimpleCodeList>
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- DIAN Genericode listas de valores:: Ultima modificación 18-02-2019 - evb-->
+<gc:CodeList xmlns:gc="http://docs.oasis-open.org/codelist/ns/genericode/1.0/">
+	<Identification>
+		<ShortName>TipoImpuesto</ShortName>
+		<LongName xml:lang="es">Tipo de Tributos</LongName>
+		<Version>1</Version>
+		<CanonicalUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TipoImpuesto</CanonicalUri>
+		<CanonicalVersionUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TipoImpuesto-2.1</CanonicalVersionUri>
+		<LocationUri>http://dian.gov.co/ubl/os-ubl-2.0/cl/gc/default/TipoImpuesto-2.1.gc</LocationUri>
+		<Agency>
+			<LongName xml:lang="es">DIAN (Dirección de Impuestos y Aduanas Nacionales)</LongName>
+			<Identifier>195</Identifier>
+		</Agency>
+	</Identification>
+	<ColumnSet>
+		<Column Id="code" Use="required">
+			<ShortName>Code</ShortName>
+			<LongName xml:lang="es">Codigo Comun</LongName>
+			<Data Type="normalizedString"/>
+		</Column>
+		<Column Id="name" Use="required">
+			<ShortName>Name</ShortName>
+			<LongName xml:lang="es">Nombre</LongName>
+			<Data Type="string"/>
+		</Column>
+		<Key Id="codeKey">
+			<ShortName>CodeKey</ShortName>
+			<ColumnRef Ref="code"/>
+		</Key>
+	</ColumnSet>
+	<SimpleCodeList>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>01</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>IVA</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>02</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>IC</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>03</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>ICA</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>04</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>INC</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>05</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>ReteIVA</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>06</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>ReteRenta</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>07</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>ReteICA</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>08</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>ReteCREE</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>20</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>FtoHorticultura</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>21</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>Timbre</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>22</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>Bolsas</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>23</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>INCarbono</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>24</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>INCombustibles</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>25</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>Sobretasa Combustibles</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>26</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>Sordicom</SimpleValue>
+			</Value>
+		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>30</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>Impuesto al Consumo de Datos</SimpleValue>
+			</Value>
+		</Row>
+ 
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>ZZ</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>Nombre de la figura tributaria</SimpleValue>
+			</Value>
+		</Row>
+      </SimpleCodeList>
 </gc:CodeList>
--- a/facho/fe/data/dian/codelist/TipoOperacionNCDS-2.1.gc
+++ b/facho/fe/data/dian/codelist/TipoOperacionNCDS-2.1.gc
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gc:CodeList xmlns:gc="http://docs.oasis-open.org/codelist/ns/genericode/1.0/">
+   <Identification>
+      <ShortName>TipoOperacion</ShortName>
+      <LongName xml:lang="es">Tipo de operacion</LongName>
+      <Version>1</Version>
+      <CanonicalUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TipoOperacion</CanonicalUri>
+      <CanonicalVersionUri>urn:dian:names:especificacion:ubl:listacodigos:gc:TipoOperacion-2.1</CanonicalVersionUri>
+      <LocationUri>http://dian.gov.co/ubl/os-ubl-2.0/cl/gc/default/TipoOperacion-2.1.gc</LocationUri>
+      <Agency>
+         <LongName xml:lang="es">DIAN (Dirección de Impuestos y Aduanas Nacionales)</LongName>
+         <Identifier>195</Identifier>
+      </Agency>
+   </Identification>
+   <ColumnSet>
+      <Column Id="code" Use="required">
+         <ShortName>Code</ShortName>
+         <Data Type="normalizedString"/>
+      </Column>
+      <Column Id="name" Use="required">
+         <ShortName>Nombre</ShortName>
+         <Data Type="normalizedString"/>
+      </Column>
+      <Key Id="codeKey">
+         <ShortName>CodeKey</ShortName>
+         <ColumnRef Ref="code"/>
+      </Key>
+   </ColumnSet>
+   <SimpleCodeList>
+      <Row>
+         <Value ColumnRef="code">
+            <SimpleValue>10</SimpleValue>
+         </Value>
+         <Value ColumnRef="name">
+            <SimpleValue>Residente</SimpleValue>
+         </Value>
+      </Row>
+      <Row>
+         <Value ColumnRef="code">
+            <SimpleValue>11</SimpleValue>
+         </Value>
+         <Value ColumnRef="name">
+            <SimpleValue>No Residente</SimpleValue>
+         </Value>
+      </Row>
+   </SimpleCodeList>
+</gc:CodeList>
--- a/facho/fe/data/dian/codelist/TipoResponsabilidad-2.1.custom.gc
+++ b/facho/fe/data/dian/codelist/TipoResponsabilidad-2.1.custom.gc
@@ -30,46 +30,6 @@
 		</Key>
 	</ColumnSet>
 	<SimpleCodeList>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-99</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Otro tipo de obligado</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-06</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Ingresos y patrimonio</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-07</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Retención en la fuente a título de renta</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-08</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Retención timbre nacional</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-09</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Retención en la fuente en el impuesto sobre las ventas</SimpleValue>
-			</Value>
-		</Row>
 		<Row>
 			<Value ColumnRef="code">
 				<SimpleValue>O-13</SimpleValue>
@@ -78,14 +38,6 @@
 				<SimpleValue>Gran contribuyente</SimpleValue>
 			</Value>
 		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-14</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Informante de exógena</SimpleValue>
-			</Value>
-		</Row>
 		<Row>
 			<Value ColumnRef="code">
 				<SimpleValue>O-15</SimpleValue>
@@ -94,38 +46,6 @@
 				<SimpleValue>Autorretenedor</SimpleValue>
 			</Value>
 		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-16</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Obligación de facturar por ingresos de bienes y/o servicios excluidos</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-17</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Profesionales de compra y venta de divisas</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-19</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Productor y/o exportador de bienes exentos</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-22</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Obligado a cumplir deberes formales a nombre de terceros</SimpleValue>
-			</Value>
-		</Row>
 		<Row>
 			<Value ColumnRef="code">
 				<SimpleValue>O-23</SimpleValue>
@@ -134,62 +54,6 @@
 				<SimpleValue>Agente de retención en el impuesto sobre las ventas</SimpleValue>
 			</Value>
 		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-32</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Impuesto Nacional a la Gasolina y al ACPM</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-33</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Impuesto Nacional al consumo</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-34</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Régimen simplificado impuesto nacional consumo rest y bares</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-36</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Establecimiento Permanente</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-37</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Obligado a Facturar Electrónicamente Modelo 2242</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-38</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Facturación Electrónica Voluntaria Modelo 2242</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-39</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Proveedor de Servicios Tecnológicos PST Modelo 2242</SimpleValue>
-			</Value>
-		</Row>
 		<Row>
 			<Value ColumnRef="code">
 				<SimpleValue>O-47</SimpleValue>
@@ -214,782 +78,6 @@
 				<SimpleValue>No responsable de IVA</SimpleValue>
 			</Value>
 		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-52</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Facturador electrónico</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-99</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Otro tipo de obligado</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>R-00-PN</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Clientes del Exterior</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>R-12-PN</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Factor PN</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>R-16-PN</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Mandatario</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>R-25-PN</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Agente Interventor</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>R-99-PN</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>No responsable</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>R-06-PJ</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Apoderado especial</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>R-07-PJ</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Apoderado general</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>R-12-PJ</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Factor</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>R-16-PJ</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Mandatario</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>R-99-PJ</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Otro tipo de responsable</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-01</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Agente de carga internacional</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-02</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Agente marítimo</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-03</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Almacén general de depósito</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-04</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Comercializadora internacional (C.I.)</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-05</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Comerciante de la zona aduanera especial de Inírida, Puerto Carreño, Cumaribo y Primavera</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-06</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Comerciantes de la zona de régimen aduanero especial de Leticia</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-07</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Comerciantes de la zona de régimen aduanero especial de Maicao, Uribia y Manaure</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-08</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Comerciantes de la zona de régimen aduanero especial de Urabá, Tumaco y Guapí</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-09</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Comerciantes del puerto libre de San Andrés, Providencia y Santa Catalina</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-10</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Depósito público de apoyo logístico internacional</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-11</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Depósito privado para procesamiento industrial</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-12</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Depósito privado de transformación o ensamble</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-13</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Depósito franco</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-14</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Depósito privado aeronáutico</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-15</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Depósito privado para distribución internacional</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-16</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Depósito privado de provisiones de a bordo para consumo y para llevar</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-17</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Depósito privado para envíos urgentes</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-18</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Depósito privado</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-19</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Depósito público</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-20</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Depósito público para distribución internacional</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-21</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Exportador de café</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-22</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Exportador</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-23</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Importador</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-24</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Intermediario de tráfico postal y envíos urgentes</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-25</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Operador de transporte multimodal</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-26</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Sociedad de intermediación aduanera</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-27</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Titular de puertos y muelles de servicio público o privado</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-28</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Transportador 263nfor régimen de importación y/o exportación</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-29</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Transportista nacional para operaciones del régimen de tránsito aduanero</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-30</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Usuario comercial zona franca</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-32</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Usuario industrial de bienes zona franca</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-34</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Usuario industrial de servicios zona franca</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-36</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Usuario operador de zona franca</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-37</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Usuario aduanero permanente</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-38</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Usuario altamente exportador</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-39</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Usuario de zonas económicas especiales de exportación</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-40</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Deposito privado de instalaciones industriales</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-41</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Beneficiarios de programas especiales de exportación PEX</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-42</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Depósitos privados para mercancías en tránsito San Andrés</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-43</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Observadores de las operaciones de importación</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-44</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Usuarios sistemas especiales Importación exportación</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-46</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Transportador 263nformac régimen de importación y/o exportación</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-47</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Transportador terrestre régimen de importación y/o exportación</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-48</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Aeropuerto de servicio publico o privado</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-49</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Transportador fluvial régimen de importación</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-50</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Usuario industrial zona franca especial</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-53</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Agencias de aduanas 1</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-54</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Usuario Operador Zona Franca Especial</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-55</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Agencias de aduanas 2</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-56</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Agencias de aduanas 3</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-57</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Agencias de aduanas 4</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-58</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Transportador aéreo nacional</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-60</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Transportador aéreo, marítimo o fluvial modalidad Cabotaje</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-61</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Importador de alimentos de consumo humano y animal</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-62</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Importador Ocasional</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-63</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Importador de maquinaría y sus partes Decreto 2261 de 2012</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-64</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Beneficiario Programa de Fomento Industria Automotriz-PROFIA</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>A-99</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Otro tipo de agente aduanero</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-01</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Agencia</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-02</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Establecimiento de comercio</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-03</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Centro de explotación agrícola</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-04</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Centro de explotación animal</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-05</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Centro de explotación minera</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-06</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Centro de explotación de transformación</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-07</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Centro de explotación de servicios</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-08</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Oficina</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-09</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Sede</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-10</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Sucursal</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-11</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Consultorio</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-12</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Administraciones</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-13</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Seccionales</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-14</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Regionales</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-15</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Intendencias</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-16</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Local o negocio</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-17</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Punto de venta</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-18</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Fábrica</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-19</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Taller</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-20</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Cantera</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-21</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Pozo de Petróleo y Gas</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-22</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Otro lug de tipo de extrac explotación de recursos naturales</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>E-99</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Otro tipo de establecimiento</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-13</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Gran contribuyente</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-15</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Autorretenedor</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-23</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Agente de retención IVA</SimpleValue>
-			</Value>
-		</Row>
-		<Row>
-			<Value ColumnRef="code">
-				<SimpleValue>O-47</SimpleValue>
-			</Value>
-			<Value ColumnRef="name">
-				<SimpleValue>Régimen simple de tributación</SimpleValue>
-			</Value>
-		</Row>
 		<Row>
 			<Value ColumnRef="code">
 				<SimpleValue>R-99-PN</SimpleValue>
--- a/facho/fe/data/dian/codelist/TipoResponsabilidad-2.1.gc
+++ b/facho/fe/data/dian/codelist/TipoResponsabilidad-2.1.gc
@@ -62,5 +62,13 @@
 				<SimpleValue>Régimen simple de tributación</SimpleValue>
 			</Value>
 		</Row>
+		<Row>
+			<Value ColumnRef="code">
+				<SimpleValue>ZZ</SimpleValue>
+			</Value>
+			<Value ColumnRef="name">
+				<SimpleValue>No aplica</SimpleValue>
+			</Value>
+		</Row>
 	</SimpleCodeList>
 </gc:CodeList>
--- a/facho/fe/data/dian/codelist/init.py
+++ b/facho/fe/data/dian/codelist/init.py
@@ -82,11 +82,16 @@ TipoAmbiente = CodeList(path_for_codelist('TipoAmbiente-2.1.gc'), 'code', 'name'
 TipoDocumento = CodeList(path_for_codelist('TipoDocumento-2.1.gc'), 'code', 'name')
 TipoImpuesto = CodeList(path_for_codelist('TipoImpuesto-2.1.gc'), 'code', 'name')\
    .update(CodeList(path_for_codelist('TipoImpuesto-2.1.custom.gc'), 'code', 'name'))
+TarifaImpuesto = CodeList(path_for_codelist('TarifaImpuestoINC-2.1.gc'), 'code', 'name')\
+        .update(CodeList(path_for_codelist('TarifaImpuestoIVA-2.1.gc'), 'code', 'name'))\
+        .update(CodeList(path_for_codelist('TarifaImpuestoReteIVA-2.1.gc'), 'code', 'name'))\
+        .update(CodeList(path_for_codelist('TarifaImpuestoReteRenta-2.1.gc'), 'code', 'name'))
 CodigoPrecioReferencia = CodeList(path_for_codelist('CodigoPrecioReferencia-2.1.gc'), 'code', 'name')
 MediosPago = CodeList(path_for_codelist('MediosPago-2.1.gc'), 'code', 'name')
 FormasPago = CodeList(path_for_codelist('FormasPago-2.1.gc'), 'code', 'name')
 RegimenFiscal = CodeList(path_for_codelist('RegimenFiscal-2.1.custom.gc'), 'code', 'name')
 TipoOperacionNC = CodeList(path_for_codelist('TipoOperacionNC-2.1.gc'), 'code', 'name')
+TipoOperacionNCDS = CodeList(path_for_codelist('TipoOperacionNCDS-2.1.gc'), 'code', 'name')
 TipoOperacionND = CodeList(path_for_codelist('TipoOperacionND-2.1 - copia.gc'), 'code', 'name')
 TipoOperacionF = CodeList(path_for_codelist('TipoOperacionF-2.1.gc'), 'code', 'name')\
    .update(CodeList(path_for_codelist('TipoOperacionF-2.1.custom.gc'), 'code', 'name'))
--- a/facho/fe/fe.py
+++ b/facho/fe/fe.py
@@ -1,6 +1,5 @@
 # This file is part of facho.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
-
 from ..facho import FachoXML, FachoXMLExtension, LXMLBuilder
 import uuid
 import xmlsig
@@ -8,13 +7,16 @@ import xades
 from datetime import datetime
 import OpenSSL
 import zipfile
-import warnings
+# import warnings
 import hashlib
 from contextlib import contextmanager
 from .data.dian import codelist
 from . import form
 from collections import defaultdict
-from pathlib import Path
+# from pathlib import Path
+from dateutil import tz
+
+from cryptography.hazmat.primitives.serialization import pkcs12

 AMBIENTE_PRUEBAS = codelist.TipoAmbiente.by_name('Pruebas')['code']
 AMBIENTE_PRODUCCION = codelist.TipoAmbiente.by_name('Producción')['code']
@@ -30,33 +32,51 @@ SCHEME_AGENCY_ATTRS = {
 POLICY_ID = 'https://facturaelectronica.dian.gov.co/politicadefirma/v2/politicadefirmav2.pdf'
 POLICY_NAME = u'Política de firma para facturas electrónicas de la República de Colombia.'

+Bogota = tz.gettz('America/Bogota')
+# NAMESPACES = {
+#     'atd': 'urn:oasis:names:specification:ubl:schema:xsd:AttachedDocument-2',
+#     'nomina': 'dian:gov:co:facturaelectronica:NominaIndividual',
+#     'nominaajuste': 'dian:gov:co:facturaelectronica:NominaIndividualDeAjuste',    
+#     'fe': 'http://www.dian.gov.co/contratos/facturaelectronica/v1',
+#     'xs': 'http://www.w3.org/2001/XMLSchema-instance',    
+#     'cac': 'urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2',
+#     'cbc': 'urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2',
+#     'cdt': 'urn:DocumentInformation:names:specification:ubl:colombia:schema:xsd:DocumentInformationAggregateComponents-1',
+#     'clm54217': 'urn:un:unece:uncefact:codelist:specification:54217:2001',
+#     'clmIANAMIMEMediaType': 'urn:un:unece:uncefact:codelist:specification:IANAMIMEMediaType:2003',
+#     'ext': 'urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2',
+#     'qdt': 'urn:oasis:names:specification:ubl:schema:xsd:QualifiedDatatypes-2',
+#     'sts': 'dian:gov:co:facturaelectronica:Structures-2-1',
+#     'udt': 'urn:un:unece:uncefact:data:specification:UnqualifiedDataTypesSchemaModule:2',
+#     'xsi': 'http://www.w3.org/2001/XMLSchema-instance',
+#     'xades': 'http://uri.etsi.org/01903/v1.3.2#',
+#     'xades141': 'http://uri.etsi.org/01903/v1.4.1#',    
+#     'ds': 'http://www.w3.org/2000/09/xmldsig#',
+#     'sig': 'http://www.w3.org/2000/09/xmldsig#',
+# }
+

 NAMESPACES = {
+    'apr': 'urn:oasis:names:specification:ubl:schema:xsd:ApplicationResponse-2',
    'atd': 'urn:oasis:names:specification:ubl:schema:xsd:AttachedDocument-2',
-    'nomina': 'dian:gov:co:facturaelectronica:NominaIndividual',
-    'nominaajuste': 'dian:gov:co:facturaelectronica:NominaIndividualDeAjuste',    
    'fe': 'http://www.dian.gov.co/contratos/facturaelectronica/v1',
-    'xs': 'http://www.w3.org/2001/XMLSchema-instance',    
    'cac': 'urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2',
    'cbc': 'urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2',
-    'cdt': 'urn:DocumentInformation:names:specification:ubl:colombia:schema:xsd:DocumentInformationAggregateComponents-1',
-    'clm54217': 'urn:un:unece:uncefact:codelist:specification:54217:2001',
-    'clmIANAMIMEMediaType': 'urn:un:unece:uncefact:codelist:specification:IANAMIMEMediaType:2003',
    'ext': 'urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2',
    'qdt': 'urn:oasis:names:specification:ubl:schema:xsd:QualifiedDatatypes-2',
    'sts': 'dian:gov:co:facturaelectronica:Structures-2-1',
-    'udt': 'urn:un:unece:uncefact:data:specification:UnqualifiedDataTypesSchemaModule:2',
+    'udt': 'urn:un:unece:uncefact:data:specification:UnqualifiedDataTypesSchemaModule:2', 
    'xsi': 'http://www.w3.org/2001/XMLSchema-instance',
-    'xades': 'http://uri.etsi.org/01903/v1.3.2#',
-    'xades141': 'http://uri.etsi.org/01903/v1.4.1#',    
    'ds': 'http://www.w3.org/2000/09/xmldsig#',
-    'sig': 'http://www.w3.org/2000/09/xmldsig#',
+    'xades': 'http://uri.etsi.org/01903/v1.3.2#',
 }

+
 def fe_from_string(document: str) -> FachoXML:
    return FeXML.from_string(document)

-from contextlib import contextmanager
+
+# from contextlib import contextmanager
@contextmanager
 def mock_xades_policy():
    from mock import patch
@@ -74,30 +94,39 @@ def mock_xades_policy():
        mock.return_value = UrllibPolicyMock()
        yield

-        
+
 class FeXML(FachoXML):

    def __init__(self, root, namespace):
-
+        # raise Exception(namespace)
        super().__init__("{%s}%s" % (namespace, root),
                         nsmap=NAMESPACES)

    @classmethod
    def from_string(cls, document: str) -> 'FeXML':
        return super().from_string(document, namespaces=NAMESPACES)
-    
+
    def tostring(self, **kw):
        # MACHETE(bit4bit) la DIAN espera que la etiqueta raiz no este en un namespace
-        root_namespace = self.root_namespace()
-        xmlns_name = {v: k for k, v in NAMESPACES.items()}[root_namespace]
-        return super().tostring(**kw)\
-            .replace(xmlns_name + ':', '')\
-            .replace('xmlns:'+xmlns_name, 'xmlns')\
-            .replace('schemaLocation', 'xsi:schemaLocation')
-    
-class DianXMLExtensionCUDFE(FachoXMLExtension):
+        urn_oasis = {
+            'AttachedDocument': 'urn:oasis:names:specification:ubl:schema:xsd:AttachedDocument-2',
+            'Invoice': 'urn:oasis:names:specification:ubl:schema:xsd:Invoice-2',
+            'CreditNote': 'urn:oasis:names:specification:ubl:schema:xsd:CreditNote-2',
+            'ApplicationResponse': 'urn:oasis:names:specification:ubl:schema:xsd:ApplicationResponse-2'
+        }

-    def __init__(self, invoice, tipo_ambiente = AMBIENTE_PRUEBAS):
+        root_namespace = self.root_namespace()
+        root_localname = self.root_localname()
+        xmlns_name = {v: k for k, v in NAMESPACES.items()}[root_namespace]
+
+        return super().tostring(**kw)\
+                        .replace(xmlns_name + ':', '')\
+                        .replace('xmlns:'+xmlns_name, 'xmlns')\
+                        .replace(root_namespace, urn_oasis[root_localname])
+
+
+class DianXMLExtensionCUDFE(FachoXMLExtension):
+    def __init__(self, invoice, tipo_ambiente=AMBIENTE_PRUEBAS):
        self.tipo_ambiente = tipo_ambiente
        self.invoice = invoice

@@ -122,12 +151,25 @@ class DianXMLExtensionCUDFE(FachoXMLExtension):
        fachoxml.set_element('./cbc:UUID', cufe,
                             schemeID=self.tipo_ambiente,
                             schemeName=self.schemeName())
-        #DIAN 1.8.-2021: FAD03
-        fachoxml.set_element('./cbc:ProfileID', 'DIAN 2.1: Factura Electrónica de Venta')
-        fachoxml.set_element('./cbc:ProfileExecutionID', self._tipo_ambiente_int())
+
+        if self.schemeName() == "CUDS-SHA384":
+            if fachoxml.tag_document() == 'Invoice':
+                fachoxml.set_element('./cbc:ProfileID',
+                        'DIAN 2.1: documento soporte en adquisiciones efectuadas a no obligados a facturar.')
+            else:
+                fachoxml.set_element('./cbc:ProfileID',
+                        'DIAN 2.1: Nota de ajuste al documento soporte en adquisiciones efectuadas a sujetos no obligados a expedir factura o documento equivalente')
+        else:
+            fachoxml.set_element('./cbc:ProfileID', 'DIAN 2.1: Factura Electrónica de Venta')
+
+        # #DIAN 1.8.-2021: FAD03
+        # fachoxml.set_element('./cbc:ProfileID', 'DIAN 2.1: Factura Electrónica de Venta')
+        fachoxml.set_element(
+            './cbc:ProfileExecutionID', self._tipo_ambiente_int())
        #DIAN 1.7.-2020: FAB36
-        fachoxml.set_element('./ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:QRCode',
-                self._get_qrcode(cufe))
+        fachoxml.set_element(
+            './ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:QRCode',
+            self._get_qrcode(cufe))

    def issue_time(self, datetime_):
        return datetime_.strftime('%H:%M:%S-05:00')
@@ -143,7 +185,8 @@ class DianXMLExtensionCUDFE(FachoXMLExtension):
        build_vars['HoraFac'] = self.issue_time(invoice.invoice_issue)
        # PAG 601
        build_vars['ValorBruto'] = invoice.invoice_legal_monetary_total.line_extension_amount
-        build_vars['ValorTotalPagar'] = invoice.invoice_legal_monetary_total.payable_amount
+        build_vars['ValorTotalPagar'
+                   ] = invoice.invoice_legal_monetary_total.payable_amount
        ValorImpuestoPara = defaultdict(lambda: form.Amount(0.0))
        build_vars['CodImpuesto1'] = '01'
        build_vars['CodImpuesto2'] = '04'
@@ -173,7 +216,8 @@ class DianXMLExtensionCUDFE(FachoXMLExtension):


 class DianXMLExtensionCUFE(DianXMLExtensionCUDFE):
-    def __init__(self, invoice,  clave_tecnica = '', tipo_ambiente = AMBIENTE_PRUEBAS):
+    def __init__(
+            self, invoice,  clave_tecnica='', tipo_ambiente=AMBIENTE_PRUEBAS):
        self.tipo_ambiente = tipo_ambiente
        self.clave_tecnica = clave_tecnica
        self.invoice = invoice
@@ -209,6 +253,7 @@ class DianXMLExtensionCUFE(DianXMLExtensionCUDFE):
            '%d' % build_vars['TipoAmb'],
        ]

+
 class DianXMLExtensionCUDE(DianXMLExtensionCUDFE):
    def __init__(self, invoice, software_pin, tipo_ambiente = AMBIENTE_PRUEBAS):
        self.tipo_ambiente = tipo_ambiente
@@ -246,6 +291,41 @@ class DianXMLExtensionCUDE(DianXMLExtensionCUDFE):
            '%d' % build_vars['TipoAmb'],
        ]

+
+class DianXMLExtensionCUDS(DianXMLExtensionCUDFE):
+    def __init__(self, invoice, software_pin, tipo_ambiente = AMBIENTE_PRUEBAS):
+        self.tipo_ambiente = tipo_ambiente
+        self.software_pin = software_pin
+        self.invoice = invoice
+
+    def schemeName(self):
+        return 'CUDS-SHA384'
+
+    def buildVars(self):
+        build_vars = super().buildVars()
+        build_vars['Software-PIN'] = str(self.software_pin)
+        return build_vars
+
+    def formatVars(self):
+        build_vars = self.buildVars()
+        CodImpuesto1 = build_vars['CodImpuesto1']
+        CodImpuesto2 = build_vars['CodImpuesto2']
+        CodImpuesto3 = build_vars['CodImpuesto3']
+        return [
+            '%s' % build_vars['NumFac'],
+            '%s' % build_vars['FecFac'],
+            '%s' % build_vars['HoraFac'],
+            form.Amount(build_vars['ValorBruto']).truncate_as_string(2),
+            CodImpuesto1,
+            form.Amount(build_vars['ValorImpuestoPara'].get(CodImpuesto1, 0.0)).truncate_as_string(2),
+            form.Amount(build_vars['ValorTotalPagar']).truncate_as_string(2),
+            '%s' % build_vars['NitOFE'],
+            '%s' % build_vars['NumAdq'],            
+            '%s' % build_vars['Software-PIN'],
+            '%d' % build_vars['TipoAmb'],
+        ]
+
+
 class DianXMLExtensionSoftwareProvider(FachoXMLExtension):
    # RESOLUCION 0004: pagina 108

@@ -255,7 +335,8 @@ class DianXMLExtensionSoftwareProvider(FachoXMLExtension):
        self.id_software = id_software

    def build(self, fexml):
-        software_provider = fexml.fragment('./ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:SoftwareProvider')
+        software_provider = fexml.fragment(
+            './ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:SoftwareProvider')
        provider_id_attrs = SCHEME_AGENCY_ATTRS.copy()
        provider_id_attrs.update({'schemeID': self.dv})
        #DIAN 1.7.-2020: FAB23
@@ -285,7 +366,6 @@ class DianXMLExtensionSoftwareSecurityCode(FachoXMLExtension):


 class DianXMLExtensionSigner:
-
    def __init__(self, pkcs12_path, passphrase=None, localpolicy=True):
        self._pkcs12_data = open(pkcs12_path, 'rb').read()
        self._passphrase = None
@@ -296,17 +376,18 @@ class DianXMLExtensionSigner:
    @classmethod
    def from_bytes(cls, data, passphrase=None, localpolicy=True):
        self = cls.__new__(cls)
-        
        self._pkcs12_data = data
        self._passphrase = None
        self._localpolicy = localpolicy
        if passphrase:
            self._passphrase = passphrase.encode('utf-8')
-            
+
        return self

    def _element_extension_content(self, fachoxml):
-        return fachoxml.builder.xpath(fachoxml.root, './ext:UBLExtensions/ext:UBLExtension[2]/ext:ExtensionContent')
+        return fachoxml.builder.xpath(
+            fachoxml.root,
+            './ext:UBLExtensions/ext:UBLExtension[2]/ext:ExtensionContent')

    def sign_xml_string(self, document):
        xml = LXMLBuilder.from_string(document)
@@ -328,7 +409,6 @@ class DianXMLExtensionSigner:
        )
        xml.append(signature)

-
        ref = xmlsig.template.add_reference(
            signature, xmlsig.constants.TransformSha256, uri="", name="xmldsig-%s-ref0" % (id_uuid)
        )
@@ -336,14 +416,16 @@ class DianXMLExtensionSigner:

        id_keyinfo = "xmldsig-%s-KeyInfo" % (id_uuid)
        xmlsig.template.add_reference(
-            signature, xmlsig.constants.TransformSha256, uri="#%s" % (id_keyinfo), name="xmldsig-%s-ref1" % (id_uuid),
+            signature, xmlsig.constants.TransformSha256, uri="#%s" % (
+                id_keyinfo), name="xmldsig-%s-ref1" % (id_uuid),
        )
        ki = xmlsig.template.ensure_key_info(signature, name=id_keyinfo)
        data = xmlsig.template.add_x509_data(ki)
        xmlsig.template.x509_data_add_certificate(data)
        xmlsig.template.add_key_value(ki)

-        qualifying = xades.template.create_qualifying_properties(signature, 'XadesObjects', 'xades')
+        qualifying = xades.template.create_qualifying_properties(
+            signature, 'XadesObjects', 'xades')
        xades.utils.ensure_id(qualifying)

        id_props = "xmldsig-%s-signedprops" % (id_uuid)
@@ -351,10 +433,12 @@ class DianXMLExtensionSigner:
            signature, xmlsig.constants.TransformSha256, uri="#%s" % (id_props),
            uri_type="http://uri.etsi.org/01903#SignedProperties"
        )
-        xmlsig.template.add_transform(props_ref, xmlsig.constants.TransformInclC14N)
+        xmlsig.template.add_transform(
+            props_ref, xmlsig.constants.TransformInclC14N)

        # TODO assert with http://www.sic.gov.co/hora-legal-colombiana
-        props = xades.template.create_signed_properties(qualifying, name=id_props, datetime=datetime.now())
+        props = xades.template.create_signed_properties(
+            qualifying, name=id_props, datetime=datetime.now(tz=Bogota))
        xades.template.add_claimed_role(props, "supplier")

        policy = xades.policy.GenericPolicyId(
@@ -362,9 +446,13 @@ class DianXMLExtensionSigner:
            POLICY_NAME,
            xmlsig.constants.TransformSha256)
        ctx = xades.XAdESContext(policy)
-        ctx.load_pkcs12(OpenSSL.crypto.load_pkcs12(self._pkcs12_data,
-                                                   self._passphrase))
+        ctx.load_pkcs12(pkcs12.load_key_and_certificates(
+            self._pkcs12_data,
+            self._passphrase))

+        # ctx.load_pkcs12(OpenSSL.crypto.load_pkcs12(
+        #     self._pkcs12_data,
+        #     self._passphrase))
        if self._localpolicy:
            with mock_xades_policy():
                ctx.sign(signature)
@@ -372,7 +460,7 @@ class DianXMLExtensionSigner:
        else:
            ctx.sign(signature)
            ctx.verify(signature)
-        #xmlsig take parent root
+        # xmlsig take parent root
        xml.remove(signature)
        return signature

@@ -381,29 +469,28 @@ class DianXMLExtensionSigner:
        extcontent = self._element_extension_content(fachoxml)
        fachoxml.append_element(extcontent, signature)

-        
+
 class DianXMLExtensionAuthorizationProvider(FachoXMLExtension):
    # RESOLUCION 0004: pagina 176

    def build(self, fexml):
        attrs = {'schemeID': '4', 'schemeName': '31'}
        attrs.update(SCHEME_AGENCY_ATTRS)
-        
        authorization_provider = fexml.fragment('./ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:AuthorizationProvider')
        authorization_provider.set_element('./sts:AuthorizationProviderID',
                                           '800197268',
                                           **attrs)


-
 class DianXMLExtensionInvoiceSource(FachoXMLExtension):
    # CAB13
    def build(self, fexml):
        dian_path = '/fe:CreditNote/ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:InvoiceSource/cbc:IdentificationCode'
-        fexml.set_element(dian_path, 'CO',
-                          listAgencyID="6",
-                          listAgencyName="United Nations Economic Commission for Europe",
-                          listSchemeURI="urn:oasis:names:specification:ubl:codelist:gc:CountryIdentificationCode-2.1")
+        fexml.set_element(
+            dian_path, 'CO',
+            listAgencyID="6",
+            listAgencyName="United Nations Economic Commission for Europe",
+            listSchemeURI="urn:oasis:names:specification:ubl:codelist:gc:CountryIdentificationCode-2.1")


 class DianXMLExtensionInvoiceAuthorization(FachoXMLExtension):
@@ -433,16 +520,15 @@ class DianXMLExtensionInvoiceAuthorization(FachoXMLExtension):
        invoice_control.set_element('/sts:InvoiceControl/sts:AuthorizedInvoices/sts:To',
                                    self.to)

-        fexml.set_element('./ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:InvoiceSource/cbc:IdentificationCode',
-                          'CO',
-                          #DIAN 1.7.-2020: FAB15
-                          listAgencyID="6",
-                          #DIAN 1.7.-2020: FAB16
-                          listAgencyName="United Nations Economic Commission for Europe",
-                          #DIAN 1.7.-2020: FAB17
-                          listSchemeURI="urn:oasis:names:specification:ubl:codelist:gc:CountryIdentificationCode-2.1"
-                          )
-
+        fexml.set_element(
+            './ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:InvoiceSource/cbc:IdentificationCode',
+            'CO',
+            # DIAN 1.7.-2020: FAB15
+            listAgencyID="6",
+            # DIAN 1.7.-2020: FAB16
+            listAgencyName="United Nations Economic Commission for Europe",
+            # DIAN 1.7.-2020: FAB17
+            listSchemeURI="urn:oasis:names:specification:ubl:codelist:gc:CountryIdentificationCode-2.1")


 class DianZIP:
@@ -451,7 +537,8 @@ class DianZIP:
    MAX_FILES = 50

    def __init__(self, file_like):
-        self.zipfile = zipfile.ZipFile(file_like, mode='w', compression=zipfile.ZIP_DEFLATED)
+        self.zipfile = zipfile.ZipFile(
+            file_like, mode='w', compression=zipfile.ZIP_DEFLATED)
        self.num_files = 0

    def add_xml(self, name, xml_data):
@@ -472,7 +559,6 @@ class DianZIP:
    def __enter__(self):
        """
        Facilita el uso de esta manera:
-        
        f = open('xxx', 'rb')
        with DianZIP(f) as zip:
          zip.add_invoice_xml('name', 'data xml')
@@ -495,7 +581,7 @@ class DianXMLExtensionSignerVerifier:
    def verify_string(self, document):
        # Obtener FachoXML
        xml = LXMLBuilder.from_string(document)
-        fachoxml = FachoXML(xml,nsmap=NAMESPACES)
+        fachoxml = FachoXML(xml, nsmap=NAMESPACES)

        # Obtener Signature
        signature = fachoxml.builder.xpath(fachoxml.root, '//ds:Signature')
--- a/facho/fe/form/init.py
+++ b/facho/fe/form/init.py
@@ -1,24 +1,26 @@
 # This file is part of facho.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.

-import hashlib
-from functools import reduce
-import copy
+# import hashlib
+# from functools import reduce
+# import copy
+
 import dataclasses
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from datetime import datetime, date
-from collections import defaultdict
+# from collections import defaultdict
 import decimal
 from decimal import Decimal
 import typing
-
 from ..data.dian import codelist

 DECIMAL_PRECISION = 6

+
 class AmountCurrencyError(TypeError):
    pass

+
@dataclass
 class Currency:
    code: str
@@ -29,6 +31,7 @@ class Currency:
    def __str__(self):
        return self.code

+
 class Collection:

    def __init__(self, array):
@@ -45,6 +48,7 @@ class Collection:
    def sum(self):
        return sum(self.array)

+
 class AmountCollection(Collection):

    def sum(self):
@@ -53,10 +57,14 @@ class AmountCollection(Collection):
            total += v
        return total

-class Amount:
-    def __init__(self, amount: int or float or str or Amount, currency: Currency = Currency('COP')):

-        #DIAN 1.7.-2020: 1.2.3.1
+class Amount:
+    def __init__(
+            self, amount: int or float or str,
+            currency: Currency = Currency('COP'),
+            precision=DECIMAL_PRECISION):
+        self.precision = precision
+        # DIAN 1.7.-2020: 1.2.3.1
        if isinstance(amount, Amount):
            if amount < Amount(0.0):
                raise ValueError('amount must be positive >= 0')
@@ -67,14 +75,17 @@ class Amount:
            if float(amount) < 0:
                raise ValueError('amount must be positive >= 0')

-            self.amount = Decimal(amount, decimal.Context(prec=DECIMAL_PRECISION,
-                                                          #DIAN 1.7.-2020: 1.2.1.1
-                                                          rounding=decimal.ROUND_HALF_EVEN ))
+            self.amount = Decimal(
+                amount, decimal.Context(
+                    prec=self.precision,
+                    # DIAN 1.7.-2020: 1.2.1.1
+                    rounding=decimal.ROUND_HALF_EVEN)
+            )
            self.currency = currency

    def fromNumber(self, val):
        return Amount(val, currency=self.currency)
-    
+
    def round(self, prec):
        return Amount(round(self.amount, prec), currency=self.currency)

@@ -87,20 +98,25 @@ class Amount:
    def __lt__(self, other):
        if not self.is_same_currency(other):
            raise AmountCurrencyError()
-        return round(self.amount, DECIMAL_PRECISION) < round(other, 2)
+        return round(self.amount, self.precision) < round(other, 2)

    def __eq__(self, other):
        if not self.is_same_currency(other):
            raise AmountCurrencyError()
-        return round(self.amount, DECIMAL_PRECISION) == round(other.amount, DECIMAL_PRECISION)
+        return round(self.amount, self.precision) == round(
+            other.amount, self.precision)

    def _cast(self, val):
        if type(val) in [int, float]:
            return self.fromNumber(val)
        if isinstance(val, Amount):
            return val
-        raise TypeError("cant cast to amount")
-    
+
+        if isinstance(val, Decimal):
+            return self.fromNumber(float(val))
+
+        raise TypeError("cant cast %s to amount" % (type(val)))
+
    def __add__(self, rother):
        other = self._cast(rother)
        if not self.is_same_currency(other):
@@ -124,14 +140,14 @@ class Amount:

    def truncate_as_string(self, prec):
        parts = str(self.float()).split('.', 1)
-        return '%s.%s' % (parts[0], parts[1][0:prec].ljust(prec,'0'))
+        return '%s.%s' % (parts[0], parts[1][0:prec].ljust(prec, '0'))

    def float(self):
        return float(round(self.amount, DECIMAL_PRECISION))
-    
+

 class Quantity:
-    
+
    def __init__(self, val, code):
        if type(val) not in [float, int]:
            raise ValueError('val expected int or float')
@@ -153,6 +169,7 @@ class Quantity:
    def __repr__(self):
        return str(self)

+
@dataclass
 class Item:
    scheme_name: str
@@ -163,10 +180,10 @@ class Item:


 class StandardItem(Item):
-    def __init__(self, id_: str, description: str = ''):
+    def __init__(self, id_: str, description: str = '', name: str = ''):
        super().__init__(id=id_,
                         description=description,
-                         scheme_name='',
+                         scheme_name=name,
                         scheme_id='999',
                         scheme_agency_id='')

@@ -177,9 +194,9 @@ class UNSPSCItem(Item):
                         description=description,
                         scheme_name='UNSPSC',
                         scheme_id='001',
-                         scheme_agency_id='10')        
+                         scheme_agency_id='10')
+

-        
@dataclass
 class Country:
    code: str
@@ -190,6 +207,7 @@ class Country:
            raise ValueError("code [%s] not found" % (self.code))
        self.name = codelist.Paises[self.code]['name']

+
@dataclass
 class CountrySubentity:
    code: str
@@ -200,6 +218,7 @@ class CountrySubentity:
            raise ValueError("code [%s] not found" % (self.code))
        self.name = codelist.Departamento[self.code]['name']

+
@dataclass
 class City:
    code: str
@@ -210,13 +229,22 @@ class City:
            raise ValueError("code [%s] not found" % (self.code))
        self.name = codelist.Municipio[self.code]['name']

+
+@dataclass
+class PostalZone:
+    code: str = ''
+
+
@dataclass
 class Address:
    name: str
    street: str = ''
-    city: City = City('05001')
-    country: Country = Country('CO')
-    countrysubentity: CountrySubentity = CountrySubentity('05')
+    city: City = field(default_factory=lambda: City('05001'))
+    country: Country = field(default_factory=lambda: Country('CO'))
+    countrysubentity: CountrySubentity = field(
+        default_factory=lambda: CountrySubentity('05'))
+    postalzone: PostalZone = field(default_factory=lambda: PostalZone(''))
+

@dataclass
 class PartyIdentification:
@@ -237,6 +265,7 @@ class PartyIdentification:
        if self.type_fiscal not in codelist.TipoIdFiscal:
            raise ValueError("type_fiscal [%s] not found" % (self.type_fiscal))

+
@dataclass
 class Responsability:
    codes: list
@@ -261,12 +290,12 @@ class TaxScheme:
    code: str
    name: str = ''

-
    def __post_init__(self):
        if self.code not in codelist.TipoImpuesto:
            raise ValueError("code not found")
        self.name = codelist.TipoImpuesto[self.code]['name']

+
@dataclass
 class Party:
    name: str
@@ -274,10 +303,10 @@ class Party:
    responsability_code: typing.List[Responsability]
    responsability_regime_code: str
    organization_code: str
-    tax_scheme: TaxScheme = TaxScheme('01')
+    tax_scheme: TaxScheme = field(default_factory=lambda: TaxScheme('01'))

    phone: str = ''
-    address: Address = Address('')
+    address: Address = field(default_factory=lambda: Address(''))
    email: str = ''
    legal_name: str = ''
    legal_company_ident: str = ''
@@ -305,7 +334,7 @@ class TaxScheme:
 class TaxSubTotal:
    percent: float
    scheme: typing.Optional[TaxScheme] = None
-    tax_amount: Amount = Amount(0.0)
+    tax_amount: Amount = field(default_factory=lambda: Amount(0.0))

    def calculate(self, invline):
        if self.percent is not None:
@@ -315,12 +344,11 @@ class TaxSubTotal:
@dataclass
 class TaxTotal:
    subtotals: list
-    tax_amount: Amount = Amount(0.0)
-    taxable_amount: Amount = Amount(0.0)
+    tax_amount: Amount = field(default_factory=lambda: Amount(0.0))
+    taxable_amount: Amount = field(default_factory=lambda: Amount(0.0))

    def calculate(self, invline):
        self.taxable_amount = invline.total_amount
-
        for subtax in self.subtotals:
            subtax.calculate(invline)
            self.tax_amount += subtax.tax_amount
@@ -333,6 +361,40 @@ class TaxTotalOmit(TaxTotal):
    def calculate(self, invline):
        pass

+
+@dataclass
+class WithholdingTaxSubTotal:
+    percent: float
+    scheme: typing.Optional[TaxScheme] = None
+    tax_amount: Amount = field(default_factory=lambda: Amount(0.0))
+
+    def calculate(self, invline):
+        if self.percent is not None:
+            self.tax_amount = invline.total_amount * Amount(self.percent / 100)
+
+
+@dataclass
+class WithholdingTaxTotal:
+    subtotals: list
+    tax_amount: Amount = field(default_factory=lambda: Amount(0.0))
+    taxable_amount: Amount = field(default_factory=lambda: Amount(0.0))
+
+    def calculate(self, invline):
+        self.taxable_amount = invline.total_amount
+
+        for subtax in self.subtotals:
+            subtax.calculate(invline)
+            self.tax_amount += subtax.tax_amount
+
+
+class WithholdingTaxTotalOmit(WithholdingTaxTotal):
+    def __init__(self):
+        super().__init__([])
+
+    def calculate(self, invline):
+        pass
+
+
@dataclass
 class Price:
    amount: Amount
@@ -348,6 +410,7 @@ class Price:

        self.amount *= self.quantity

+
@dataclass
 class PaymentMean:
    DEBIT = '01'
@@ -365,8 +428,24 @@ class PaymentMean:

@dataclass
 class PrePaidPayment:
-    #DIAN 1.7.-2020: FBD03
-    paid_amount: Amount = Amount(0.0)
+    # DIAN 1.7.-2020: FBD03
+    paid_amount: Amount = field(default_factory=lambda: Amount(0.0))
+
+
+@dataclass
+class BillingResponse:
+    id: str
+    code: str
+    description: str
+
+
+class SupportDocumentCreditNoteResponse(BillingResponse):
+    """
+    ReferenceID: Identifica la sección del Documento
+    Soporte original a la cual se aplica la corrección.
+    ResponseCode: Código de descripción de la corrección.
+    Description: Descripción de la naturaleza de la corrección.
+    """


@dataclass
@@ -375,6 +454,7 @@ class BillingReference:
    uuid: str
    date: date

+
 class CreditNoteDocumentReference(BillingReference):
    """
    ident: Prefijo + Numero de la factura relacionada
@@ -390,6 +470,7 @@ class DebitNoteDocumentReference(BillingReference):
    date: fecha de emision de la factura relacionada
    """

+
 class InvoiceDocumentReference(BillingReference):
    """
    ident: Prefijo + Numero de la nota credito relacionada
@@ -397,6 +478,7 @@ class InvoiceDocumentReference(BillingReference):
    date: fecha de emision de la nota credito relacionada
    """

+
@dataclass
 class AllowanceChargeReason:
    code: str
@@ -409,22 +491,26 @@ class AllowanceChargeReason:

@dataclass
 class AllowanceCharge:
-    #DIAN 1.7.-2020: FAQ03
+    # DIAN 1.7.-2020: FAQ03
    charge_indicator: bool = True
-    amount: Amount = Amount(0.0)
+    amount: Amount = field(default_factory=lambda: Amount(0.0))
    reason: AllowanceChargeReason = None

-    #Valor Base para calcular el descuento o el cargo
-    base_amount: typing.Optional[Amount] = Amount(0.0)
-    
+    # Valor Base para calcular el descuento o el cargo
+    base_amount: typing.Optional[Amount] = field(
+        default_factory=lambda: Amount(0.0))
+
    # Porcentaje: Porcentaje que aplicar.
-    multiplier_factor_numeric: Amount = Amount(1.0)
-    
+    multiplier_factor_numeric: Amount = field(
+        default_factory=lambda: Amount(1.0))
+
    def isCharge(self):
-        return self.charge_indicator == True
+        charge_indicator = self.charge_indicator is True
+        return charge_indicator

    def isDiscount(self):
-        return self.charge_indicator == False
+        charge_indicator = self.charge_indicator is False
+        return charge_indicator

    def asCharge(self):
        self.charge_indicator = True
@@ -438,11 +524,13 @@ class AllowanceCharge:
    def set_base_amount(self, amount):
        self.base_amount = amount

+
 class AllowanceChargeAsDiscount(AllowanceCharge):
    def __init__(self, amount: Amount = Amount(0.0)):
        self.charge_indicator = False
        self.amount = amount

+
@dataclass
 class InvoiceLine:
    # RESOLUCION 0004: pagina 155
@@ -455,8 +543,9 @@ class InvoiceLine:
    # la factura y el percent es unico por type_code
    # de subtotal
    tax: typing.Optional[TaxTotal]
-
-    allowance_charge: typing.List[AllowanceCharge] = dataclasses.field(default_factory=list)
+    withholding: typing.Optional[WithholdingTaxTotal]
+    allowance_charge: typing.List[AllowanceCharge] = dataclasses.field(
+        default_factory=list)

    def add_allowance_charge(self, charge):
        if not isinstance(charge, AllowanceCharge):
@@ -467,7 +556,7 @@ class InvoiceLine:
    @property
    def total_amount_without_charge(self):
        return (self.quantity * self.price.amount)
-    
+
    @property
    def total_amount(self):
        charge = AmountCollection(self.allowance_charge)\
@@ -499,8 +588,17 @@ class InvoiceLine:
    def taxable_amount(self):
        return self.tax.taxable_amount

+    @property
+    def withholding_amount(self):
+        return self.withholding.tax_amount
+
+    @property
+    def withholding_taxable_amount(self):
+        return self.withholding.taxable_amount
+
    def calculate(self):
        self.tax.calculate(self)
+        self.withholding.calculate(self)

    def __post_init__(self):
        if not isinstance(self.quantity, Quantity):
@@ -509,18 +607,22 @@ class InvoiceLine:
        if self.tax is None:
            self.tax = TaxTotalOmit()

+        if self.withholding is None:
+            self.withholding = WithholdingTaxTotalOmit()
+
+
@dataclass
 class LegalMonetaryTotal:
-    line_extension_amount: Amount = Amount(0.0)
-    tax_exclusive_amount: Amount = Amount(0.0)
-    tax_inclusive_amount: Amount = Amount(0.0)
-    charge_total_amount: Amount = Amount(0.0)
-    allowance_total_amount: Amount = Amount(0.0)
-    payable_amount: Amount = Amount(0.0)
-    prepaid_amount: Amount = Amount(0.0)
+    line_extension_amount: Amount = field(default_factory=lambda: Amount(0.0))
+    tax_exclusive_amount: Amount = field(default_factory=lambda: Amount(0.0))
+    tax_inclusive_amount: Amount = field(default_factory=lambda: Amount(0.0))
+    charge_total_amount: Amount = field(default_factory=lambda: Amount(0.0))
+    allowance_total_amount: Amount = field(default_factory=lambda: Amount(0.0))
+    payable_amount: Amount = field(default_factory=lambda: Amount(0.0))
+    prepaid_amount: Amount = field(default_factory=lambda: Amount(0.0))

    def calculate(self):
-        #DIAN 1.7.-2020: FAU14
+        # DIAN 1.7.-2020: FAU14
        self.payable_amount = \
            self.tax_inclusive_amount \
            + self.allowance_total_amount \
@@ -528,22 +630,29 @@ class LegalMonetaryTotal:
            - self.prepaid_amount


-
 class NationalSalesInvoiceDocumentType(str):
    def __str__(self):
        # 6.1.3
        return '01'

+
 class CreditNoteDocumentType(str):
    def __str__(self):
        # 6.1.3
        return '91'

+
 class DebitNoteDocumentType(str):
    def __str__(self):
        # 6.1.3
        return '92'

+
+class CreditNoteSupportDocumentType(str):
+    def __str__(self):
+        return '95'
+
+
 class Invoice:
    def __init__(self, type_code: str):
        if str(type_code) not in codelist.TipoDocumento:
@@ -563,6 +672,7 @@ class Invoice:
        self.invoice_allowance_charge = []
        self.invoice_prepaid_payment = []
        self.invoice_billing_reference = None
+        self.invoice_discrepancy_response = None
        self.invoice_type_code = str(type_code)
        self.invoice_ident_prefix = None

@@ -588,7 +698,8 @@ class Invoice:
            if len(prefix) <= 4:
                self.invoice_ident_prefix = prefix
            else:
-                raise ValueError('ident prefix failed to get, expected 0  to 4 chars')
+                raise ValueError(
+                    'ident prefix failed to get, expected 0  to 4 chars')

    def set_ident(self, ident: str):
        """
@@ -619,7 +730,7 @@ class Invoice:

    def _get_codelist_tipo_operacion(self):
        return codelist.TipoOperacionF
-    
+
    def set_operation_type(self, operation):
        if operation not in self._get_codelist_tipo_operacion():
            raise ValueError("operation not found")
@@ -638,6 +749,9 @@ class Invoice:
    def set_billing_reference(self, billing_reference: BillingReference):
        self.invoice_billing_reference = billing_reference

+    def set_discrepancy_response(self, billing_response: BillingResponse):
+        self.invoice_discrepancy_response = billing_response
+
    def accept(self, visitor):
        visitor.visit_payment_mean(self.invoice_payment_mean)
        visitor.visit_customer(self.invoice_customer)
@@ -649,29 +763,34 @@ class Invoice:

    def _calculate_legal_monetary_total(self):
        for invline in self.invoice_lines:
-            self.invoice_legal_monetary_total.line_extension_amount += invline.total_amount
-            self.invoice_legal_monetary_total.tax_exclusive_amount += invline.total_tax_exclusive_amount
-            #DIAN 1.7.-2020: FAU6
-            self.invoice_legal_monetary_total.tax_inclusive_amount += invline.total_tax_inclusive_amount
+            self.invoice_legal_monetary_total.line_extension_amount +=\
+                invline.total_amount
+            self.invoice_legal_monetary_total.tax_exclusive_amount +=\
+                invline.total_tax_exclusive_amount
+            # DIAN 1.7.-2020: FAU6
+            self.invoice_legal_monetary_total.tax_inclusive_amount +=\
+                invline.total_tax_inclusive_amount

-        #DIAN 1.7.-2020: FAU08
-        self.invoice_legal_monetary_total.allowance_total_amount = AmountCollection(self.invoice_allowance_charge)\
+        # DIAN 1.7.-2020: FAU08
+        self.invoice_legal_monetary_total.allowance_total_amount =\
+            AmountCollection(self.invoice_allowance_charge)\
            .filter(lambda charge: charge.isDiscount())\
            .map(lambda charge: charge.amount)\
            .sum()

-        #DIAN 1.7.-2020: FAU10
-        self.invoice_legal_monetary_total.charge_total_amount = AmountCollection(self.invoice_allowance_charge)\
+        # DIAN 1.7.-2020: FAU10
+        self.invoice_legal_monetary_total.charge_total_amount =\
+            AmountCollection(self.invoice_allowance_charge)\
            .filter(lambda charge: charge.isCharge())\
            .map(lambda charge: charge.amount)\
            .sum()

-        #DIAN 1.7.-2020: FAU12
-        self.invoice_legal_monetary_total.prepaid_amount = AmountCollection(self.invoice_prepaid_payment)\
-            .map(lambda paid: paid.paid_amount)\
-            .sum()
+        # DIAN 1.7.-2020: FAU12
+        self.invoice_legal_monetary_total.prepaid_amount = AmountCollection(
+            self.invoice_prepaid_payment).map(
+                lambda paid: paid.paid_amount).sum()

-        #DIAN 1.7.-2020: FAU14
+        # DIAN 1.7.-2020: FAU14
        self.invoice_legal_monetary_total.calculate()

    def _refresh_charges_base_amount(self):
@@ -679,18 +798,21 @@ class Invoice:
            for invline in self.invoice_lines:
                if invline.allowance_charge:
                    # TODO actualmente solo uno de los cargos es permitido
-                    raise ValueError('allowance charge in invoice exclude invoice line')
-            
+                    raise ValueError(
+                        'allowance charge in invoice exclude invoice line')
+
        # cargos a nivel de factura
        for charge in self.invoice_allowance_charge:
-            charge.set_base_amount(self.invoice_legal_monetary_total.line_extension_amount)
-        
+            charge.set_base_amount(
+                self.invoice_legal_monetary_total.line_extension_amount)
+
    def calculate(self):
        for invline in self.invoice_lines:
            invline.calculate()
        self._calculate_legal_monetary_total()
        self._refresh_charges_base_amount()

+
 class NationalSalesInvoice(Invoice):
    def __init__(self):
        super().__init__(NationalSalesInvoiceDocumentType())
@@ -706,7 +828,7 @@ class CreditNote(Invoice):

    def _get_codelist_tipo_operacion(self):
        return codelist.TipoOperacionNC
-    
+
    def _check_ident_prefix(self, prefix):
        if len(prefix) != 6:
            raise ValueError('prefix must be 6 length')
@@ -735,3 +857,30 @@ class DebitNote(Invoice):
        if not self.invoice_ident_prefix:
            self.invoice_ident_prefix = self.invoice_ident[0:6]

+
+class SupportDocument(Invoice):
+    pass
+
+
+class SupportDocumentCreditNote(SupportDocument):
+    def __init__(
+            self, invoice_document_reference: BillingReference,
+            invoice_discrepancy_response: BillingResponse):
+        super().__init__(CreditNoteSupportDocumentType())
+
+        if not isinstance(invoice_document_reference, BillingReference):
+            raise TypeError('invoice_document_reference invalid type')
+        self.invoice_billing_reference = invoice_document_reference
+        self.invoice_discrepancy_response = invoice_discrepancy_response
+
+    def _get_codelist_tipo_operacion(self):
+        return codelist.TipoOperacionNCDS
+
+    def _check_ident_prefix(self, prefix):
+        if len(prefix) != 6:
+            raise ValueError('prefix must be 6 length')
+
+    def _set_ident_prefix_automatic(self):
+        if not self.invoice_ident_prefix:
+            self.invoice_ident_prefix = self.invoice_ident[0:6]
+    pass
--- a/facho/fe/form_xml/init.py
+++ b/facho/fe/form_xml/init.py
@@ -2,4 +2,7 @@ from .invoice import *
 from .credit_note import *
 from .debit_note import *
 from .utils import *
+from .support_document import *
+from .support_document_credit_note import *
 from .attached_document import *
+from .application_response import *
--- a/facho/fe/form_xml/application_response.py
+++ b/facho/fe/form_xml/application_response.py
@@ -0,0 +1,177 @@
+from .. import fe
+
+__all__ = ['ApplicationResponse']
+
+
+class ApplicationResponse:
+
+    def __init__(self, invoice, tag_document='ApplicationResponse'):
+        self.schema =\
+            'urn:oasis:names:specification:ubl:schema:xsd:ApplicationResponse-2'
+        self.tag_document = tag_document
+        self.invoice = invoice
+        self.fexml = fe.FeXML(
+            self.tag_document, self.schema)
+        self.application_response = self.application_response()
+
+    def application_response(self):
+        # DIAN 1.9.-2023: AE02
+        self.fexml.set_element(
+            './cbc:UBLVersionID', 'UBL 2.1')
+
+        # DIAN 1.9.-2023: AE03
+        self.fexml.set_element(
+            './cbc:CustomizationID', 'Documentos adjuntos')
+
+        # DIAN 1.9.-2023: AE04
+        self.fexml.set_element(
+            './cbc:ProfileID', 'DIAN 2.1')
+
+        # DIAN 1.9.-2023: AE04a
+        self.fexml.set_element(
+            './cbc:ProfileExecutionID', '1')
+
+        self.fexml.set_element(
+            './cbc:ID', '1')
+
+        self.fexml.set_element(
+            './cbc:UUID', '1', schemeName="CUDE-SHA384")
+
+        self.fexml.set_element(
+            './cbc:IssueDate',
+            self.invoice.invoice_issue.strftime('%Y-%m-%d'))
+
+        # DIAN 1.9.-2023: AE06
+        self.fexml.set_element(
+            './cbc:IssueTime', self.invoice.invoice_issue.strftime(
+                '%H:%M:%S-05:00'))
+
+        self.set_sender_party()
+        self.set_receiver_party()
+        self.set_document_response()
+
+    def set_sender_party(self):
+        # DIAN 1.9.-2023: AE09
+        self.fexml.placeholder_for(
+            './cac:SenderParty')
+        # DIAN 1.9.-2023: AE10
+        self.fexml.placeholder_for(
+            './cac:SenderParty/cac:PartyTaxScheme')
+        # DIAN 1.9.-2023: AE11
+        self.fexml.set_element(
+            './cac:SenderParty/cac:PartyTaxScheme/cbc:RegistrationName',
+            self.invoice.invoice_supplier.name)
+        # DIAN 1.9.-2023: AE12
+        # DIAN 1.9.-2023: AE13
+        # DIAN 1.9.-2023: AE14
+        # DIAN 1.9.-2023: AE15
+        self.fexml.set_element(
+            './cac:SenderParty/cac:PartyTaxScheme/cbc:CompanyID',
+            self.invoice.invoice_supplier.ident,
+            schemeAgencyID='195',
+            schemeID=self.invoice.invoice_supplier.ident.dv,
+            schemeName=self.invoice.invoice_supplier.ident.type_fiscal)
+
+        # DIAN 1.9.-2023: AE16
+        self.fexml.set_element(
+            './cac:SenderParty/cac:PartyTaxScheme/cbc:TaxLevelCode',
+            self.invoice.invoice_supplier.responsability_code)
+
+        # DIAN 1.9.-2023: AE18
+        self.fexml.placeholder_for(
+            './cac:SenderParty/cac:PartyTaxScheme/cac:TaxScheme')
+
+        # DIAN 1.9.-2023: AE19
+        self.fexml.set_element(
+            './cac:SenderParty/cac:PartyTaxScheme/cac:TaxScheme/cbc:ID',
+            self.invoice.invoice_supplier.tax_scheme.code)
+
+        # DIAN 1.9.-2023: AE20
+        self.fexml.set_element(
+            './cac:SenderParty/cac:PartyTaxScheme/cac:TaxScheme/cbc:Name',
+            self.invoice.invoice_supplier.tax_scheme.name)
+
+    def set_receiver_party(self):
+        # DIAN 1.9.-2023: AE21
+        self.fexml.placeholder_for(
+            './cac:ReceiverParty')
+        # DIAN 1.9.-2023: AE22
+        self.fexml.placeholder_for(
+            './cac:ReceiverParty/cac:PartyTaxScheme')
+        # DIAN 1.9.-2023: AE23
+        self.fexml.set_element(
+            './cac:ReceiverParty/cac:PartyTaxScheme/cbc:RegistrationName',
+            self.invoice.invoice_customer.name)
+        # DIAN 1.9.-2023: AE24
+        # DIAN 1.9.-2023: AE25
+        # DIAN 1.9.-2023: AE26
+        # DIAN 1.9.-2023: AE27
+        self.fexml.set_element(
+            './cac:ReceiverParty/cac:PartyTaxScheme/cbc:CompanyID',
+            self.invoice.invoice_customer.ident,
+            schemeAgencyID='195',
+            schemeID=self.invoice.invoice_customer.ident.dv,
+            schemeName=self.invoice.invoice_customer.ident.type_fiscal)
+        # DIAN 1.9.-2023: AE28
+        self.fexml.set_element(
+            './cac:ReceiverParty/cac:PartyTaxScheme/cbc:TaxLevelCode',
+            self.invoice.invoice_customer.responsability_code)
+        # DIAN 1.9.-2023: AE30
+        self.fexml.placeholder_for(
+            './cac:ReceiverParty/cac:PartyTaxScheme/cac:TaxScheme')
+        # DIAN 1.9.-2023: AE31
+        self.fexml.set_element(
+            './cac:ReceiverParty/cac:PartyTaxScheme/cac:TaxScheme/cbc:ID',
+            self.invoice.invoice_customer.tax_scheme.code)
+        # DIAN 1.9.-2023: AE32
+        self.fexml.set_element(
+            './cac:ReceiverParty/cac:PartyTaxScheme/cac:TaxScheme/cbc:Name',
+            self.invoice.invoice_customer.tax_scheme.name)
+
+    def set_document_response(self):
+        self.fexml.placeholder_for(
+            './cac:DocumentResponse')
+        self.fexml.placeholder_for(
+            './cac:DocumentResponse/cac:Response')
+        self.fexml.set_element(
+            './cac:DocumentResponse/cac:Response/cbc:ResponseCode',
+            '02')
+        self.fexml.set_element(
+            './cac:DocumentResponse/cac:Response/cbc:Description',
+            'Documento validado por la DIAN')
+        self.set_documnent_reference()
+
+    def set_documnent_reference(self):
+        self.fexml.placeholder_for(
+            './cac:DocumentResponse/cac:DocumentReference')
+        self.fexml.set_element(
+            './cac:DocumentResponse/cac:DocumentReference/cbc:ID',
+            'FESS19566058')
+        self.fexml.set_element(
+            './cac:DocumentResponse/cac:DocumentReference/cbc:UUID',
+            'f51ee529aabd19d10e39444f2f593b94d56d5885fbf433faf718d53a7e968f64bf54a6ee43c6a2df842771b54a6aae1a',
+            schemeName="CUFE-SHA384")
+        self.set_response_lines()
+
+    def set_response_lines(self):
+        lines = [{
+            'LineID': '1',
+            'ResponseCode': '0000',
+            'Description': '0',
+             }]
+
+        for line in lines:
+            self.fexml.set_element(
+                './cac:DocumentResponse/cac:LineResponse/cac:LineReference/cbc:LineID', line[
+                    'LineID'])
+            self.fexml.set_element(
+                './cac:DocumentResponse/cac:LineResponse/cac:Response/cbc:ResponseCode', line[
+                    'ResponseCode'])
+            self.fexml.set_element(
+                './cac:DocumentResponse/cac:LineResponse/cac:Response/cbc:Description', line[
+                    'Description'])
+
+
+
+    def toFachoXML(self):
+        return self.fexml
--- a/facho/fe/form_xml/attached_document.py
+++ b/facho/fe/form_xml/attached_document.py
@@ -1,14 +1,227 @@
 from .. import fe
+from .application_response import ApplicationResponse

 __all__ = ['AttachedDocument']

+
 class AttachedDocument():

-    def __init__(self, id):
-        schema = 'urn:oasis:names:specification:ubl:schema:xsd:AttachedDocument-2'
-        self.fexml = fe.FeXML('AttachedDocument', schema)
-        self.fexml.set_element('./cbc:ID', id)
+    def __init__(self, invoice, DIANInvoiceXML, id):
+        self.schema =\
+            'urn:oasis:names:specification:ubl:schema:xsd:AttachedDocument-2'
+        self.id = id
+        self.invoice = invoice
+        self.DIANInvoiceXML = DIANInvoiceXML
+        self.attached_document_invoice = self.attached_document_invoice()
+
+    def attached_document_invoice(self):
+        self.fexml = fe.FeXML(
+            'AttachedDocument', self.schema)
+
+        # DIAN 1.9.-2023: AE02
+        self.fexml.set_element(
+            './cbc:UBLVersionID', 'UBL 2.1')
+
+        # DIAN 1.9.-2023: AE03
+        self.fexml.set_element(
+            './cbc:CustomizationID', 'Documentos adjuntos')
+
+        # DIAN 1.9.-2023: AE04
+        self.fexml.set_element(
+            './cbc:ProfileID', 'Factura Electrónica de Venta')
+
+        # DIAN 1.9.-2023: AE04a
+        self.fexml.set_element(
+            './cbc:ProfileExecutionID', '1')
+
+        # DIAN 1.9.-2023: AE04b
+        self.fexml.set_element(
+            './cbc:ID', self.id)
+
+        # DIAN 1.9.-2023: AE05
+        self.fexml.set_element(
+            './cbc:IssueDate',
+            self.invoice.invoice_issue.strftime('%Y-%m-%d'))
+
+        # DIAN 1.9.-2023: AE06
+        self.fexml.set_element(
+            './cbc:IssueTime', self.invoice.invoice_issue.strftime(
+                '%H:%M:%S-05:00'))
+
+        # DIAN 1.9.-2023: AE08
+        self.fexml.set_element(
+            './cbc:DocumentType', 'Contenedor de Factura Electrónica')
+
+        # DIAN 1.9.-2023: AE08a
+        self.fexml.set_element(
+            './cbc:ParentDocumentID', self.invoice.invoice_ident)
+
+        # DIAN 1.9.-2023: AE09
+        self.set_sender_party()
+
+        # DIAN 1.9.-2023: AE20
+        self.set_receiver_party()
+        # DIAN 1.9.-2023: AE33
+        self.set_attachment()
+        self.set_parent_document_line_reference()
+
+    def set_sender_party(self):
+        # DIAN 1.9.-2023: AE09
+        self.fexml.placeholder_for(
+            './cac:SenderParty')
+        # DIAN 1.9.-2023: AE10
+        self.fexml.placeholder_for(
+            './cac:SenderParty/cac:PartyTaxScheme')
+        # DIAN 1.9.-2023: AE11
+        self.fexml.set_element(
+            './cac:SenderParty/cac:PartyTaxScheme/cbc:RegistrationName',
+            self.invoice.invoice_supplier.name)
+        # DIAN 1.9.-2023: AE12
+        # DIAN 1.9.-2023: AE13
+        # DIAN 1.9.-2023: AE14
+        # DIAN 1.9.-2023: AE15
+        self.fexml.set_element(
+            './cac:SenderParty/cac:PartyTaxScheme/cbc:CompanyID',
+            self.invoice.invoice_supplier.ident,
+            schemeAgencyID='195',
+            schemeID=self.invoice.invoice_supplier.ident.dv,
+            schemeName=self.invoice.invoice_supplier.ident.type_fiscal)
+
+        # DIAN 1.9.-2023: AE16
+        self.fexml.set_element(
+            './cac:SenderParty/cac:PartyTaxScheme/cbc:TaxLevelCode',
+            self.invoice.invoice_supplier.responsability_code)
+
+        # DIAN 1.9.-2023: AE18
+        self.fexml.placeholder_for(
+            './cac:SenderParty/cac:PartyTaxScheme/cac:TaxScheme')
+
+        # DIAN 1.9.-2023: AE19
+        self.fexml.set_element(
+            './cac:SenderParty/cac:PartyTaxScheme/cac:TaxScheme/cbc:ID',
+            self.invoice.invoice_supplier.tax_scheme.code)
+
+        # DIAN 1.9.-2023: AE20
+        self.fexml.set_element(
+            './cac:SenderParty/cac:PartyTaxScheme/cac:TaxScheme/cbc:Name',
+            self.invoice.invoice_supplier.tax_scheme.name)
+
+    def set_receiver_party(self):
+        # DIAN 1.9.-2023: AE21
+        self.fexml.placeholder_for(
+            './cac:ReceiverParty')
+        # DIAN 1.9.-2023: AE22
+        self.fexml.placeholder_for(
+            './cac:ReceiverParty/cac:PartyTaxScheme')
+        # DIAN 1.9.-2023: AE23
+        self.fexml.set_element(
+            './cac:ReceiverParty/cac:PartyTaxScheme/cbc:RegistrationName',
+            self.invoice.invoice_customer.name)
+        # DIAN 1.9.-2023: AE24
+        # DIAN 1.9.-2023: AE25
+        # DIAN 1.9.-2023: AE26
+        # DIAN 1.9.-2023: AE27
+        self.fexml.set_element(
+            './cac:ReceiverParty/cac:PartyTaxScheme/cbc:CompanyID',
+            self.invoice.invoice_customer.ident,
+            schemeAgencyID='195',
+            schemeID=self.invoice.invoice_customer.ident.dv,
+            schemeName=self.invoice.invoice_customer.ident.type_fiscal)
+        # DIAN 1.9.-2023: AE28
+        self.fexml.set_element(
+            './cac:ReceiverParty/cac:PartyTaxScheme/cbc:TaxLevelCode',
+            self.invoice.invoice_customer.responsability_code)
+        # DIAN 1.9.-2023: AE30
+        self.fexml.placeholder_for(
+            './cac:ReceiverParty/cac:PartyTaxScheme/cac:TaxScheme')
+        # DIAN 1.9.-2023: AE31
+        self.fexml.set_element(
+            './cac:ReceiverParty/cac:PartyTaxScheme/cac:TaxScheme/cbc:ID',
+            self.invoice.invoice_customer.tax_scheme.code)
+        # DIAN 1.9.-2023: AE32
+        self.fexml.set_element(
+            './cac:ReceiverParty/cac:PartyTaxScheme/cac:TaxScheme/cbc:Name',
+            self.invoice.invoice_customer.tax_scheme.name)
+
+    def set_attachment(self):
+        # DIAN 1.9.-2023: AE33
+        self.fexml.placeholder_for(
+            './cac:Attachment')
+        # DIAN 1.9.-2023: AE34
+        self.fexml.placeholder_for(
+            './cac:Attachment/cac:ExternalReference')
+        # DIAN 1.9.-2023: AE35
+        self.fexml.set_element(
+            './cac:Attachment/cac:ExternalReference/cbc:MimeCode',
+            'text/xml')
+        # DIAN 1.9.-2023: AE36
+        self.fexml.set_element(
+            './cac:Attachment/cac:ExternalReference/cbc:EncodingCode',
+            'UTF-8')
+        # DIAN 1.9.-2023: AE37
+        self.fexml.set_element(
+            './cac:Attachment/cac:ExternalReference/cbc:Description',
+            self._build_attachment(self.DIANInvoiceXML)
+        )
+
+    def set_parent_document_line_reference(self):
+        self.fexml.placeholder_for(
+            './cac:ParentDocumentLineReference')
+        self.fexml.set_element(
+            './cac:ParentDocumentLineReference/cbc:LineID', 1)
+        self.fexml.placeholder_for(
+            './cac:ParentDocumentLineReference/cac:DocumentReference')
+        self.fexml.set_element(
+            './cac:ParentDocumentLineReference/cac:DocumentReference/cbc:ID',
+            '1234')
+        self.fexml.set_element(
+            './cac:ParentDocumentLineReference/cac:DocumentReference/cbc:UUID',
+            '1234',
+            schemeName="CUFE-SHA384")
+        self.fexml.set_element(
+            './cac:ParentDocumentLineReference/cac:DocumentReference/cbc:IssueDate',
+            '2024-11-28')
+        self.fexml.set_element(
+            './cac:ParentDocumentLineReference/cac:DocumentReference/cbc:DocumentType',
+            'ApplicationResponse')
+        self.fexml.placeholder_for(
+            './cac:ParentDocumentLineReference/cac:DocumentReference/cac:Attachment')
+        self.fexml.set_element(
+            './cac:ParentDocumentLineReference/cac:DocumentReference/cac:Attachment/cac:ExternalReference/cbc:MimeCode',
+            'text/xml')
+        self.fexml.set_element(
+            './cac:ParentDocumentLineReference/cac:DocumentReference/cac:Attachment/cac:ExternalReference/cbc:EncodingCode',
+            'UTF-8')
+
+        application_response = ApplicationResponse(
+            self.invoice).toFachoXML()
+
+        self.fexml.set_element(
+            './cac:ParentDocumentLineReference/cac:DocumentReference/cac:Attachment/cac:ExternalReference/cbc:Description',
+            self._build_attachment(application_response))
+        self.fexml.placeholder_for(
+            './cac:ParentDocumentLineReference/cac:DocumentReference/cac:ResultOfVerification')
+        self.fexml.set_element(
+            './cac:ParentDocumentLineReference/cac:DocumentReference/cac:ResultOfVerification/cbc:ValidatorID',
+            'Unidad Especial Dirección de Impuestos y Aduanas Nacionales')
+        self.fexml.set_element(
+            './cac:ParentDocumentLineReference/cac:DocumentReference/cac:ResultOfVerification/cbc:ValidationResultCode',
+            '02')
+        self.fexml.set_element(
+            './cac:ParentDocumentLineReference/cac:DocumentReference/cac:ResultOfVerification/cbc:ValidationDate',
+            '2024-11-28')
+        self.fexml.set_element(
+            './cac:ParentDocumentLineReference/cac:DocumentReference/cac:ResultOfVerification/cbc:ValidationTime',
+            '10:35:11-05:00')
+
+    def _build_attachment(self, DIANInvoiceXML):
+        document = (
+            '<?xml version="1.0" encoding="UTF-8" standalone="no"?>'
+        ) + DIANInvoiceXML.tostring()
+        attachment = "<![CDATA[{}]]>".format(
+            document)
+
+        return attachment

    def toFachoXML(self):
        return self.fexml
-        
--- a/facho/fe/form_xml/credit_note.py
+++ b/facho/fe/form_xml/credit_note.py
@@ -1,9 +1,10 @@
-from .. import fe
-from ..form import *
+# from .. import fe
+# from ..form import *
 from .invoice import DIANInvoiceXML

 __all__ = ['DIANCreditNoteXML']

+
 class DIANCreditNoteXML(DIANInvoiceXML):
    """
    DianInvoiceXML mapea objeto form.Invoice a XML segun
--- a/facho/fe/form_xml/debit_note.py
+++ b/facho/fe/form_xml/debit_note.py
@@ -1,9 +1,10 @@
-from .. import fe
-from ..form import *
+# from .. import fe
+# from ..form import *
 from .invoice import DIANInvoiceXML

 __all__ = ['DIANDebitNoteXML']

+
 class DIANDebitNoteXML(DIANInvoiceXML):
    """
    DianInvoiceXML mapea objeto form.Invoice a XML segun
@@ -19,19 +20,24 @@ class DIANDebitNoteXML(DIANInvoiceXML):
    def tag_document_concilied(fexml):
        return 'Debited'

-    #DIAN 1.7.-2020: DAU03
+    # DIAN 1.7.-2020: DAU03
    def set_legal_monetary(fexml, invoice):
-        fexml.set_element_amount('./cac:RequestedMonetaryTotal/cbc:LineExtensionAmount',
-                                 invoice.invoice_legal_monetary_total.line_extension_amount)
+        fexml.set_element_amount(
+            './cac:RequestedMonetaryTotal/cbc:LineExtensionAmount',
+            invoice.invoice_legal_monetary_total.line_extension_amount)

-        fexml.set_element_amount('./cac:RequestedMonetaryTotal/cbc:TaxExclusiveAmount',
-                                invoice.invoice_legal_monetary_total.tax_exclusive_amount)
+        fexml.set_element_amount(
+            './cac:RequestedMonetaryTotal/cbc:TaxExclusiveAmount',
+            invoice.invoice_legal_monetary_total.tax_exclusive_amount)

-        fexml.set_element_amount('./cac:RequestedMonetaryTotal/cbc:TaxInclusiveAmount',
-                                invoice.invoice_legal_monetary_total.tax_inclusive_amount)
+        fexml.set_element_amount(
+            './cac:RequestedMonetaryTotal/cbc:TaxInclusiveAmount',
+            invoice.invoice_legal_monetary_total.tax_inclusive_amount)

-        fexml.set_element_amount('./cac:RequestedMonetaryTotal/cbc:ChargeTotalAmount',
-                                invoice.invoice_legal_monetary_total.charge_total_amount)
+        fexml.set_element_amount(
+            './cac:RequestedMonetaryTotal/cbc:ChargeTotalAmount',
+            invoice.invoice_legal_monetary_total.charge_total_amount)

-        fexml.set_element_amount('./cac:RequestedMonetaryTotal/cbc:PayableAmount',
-                                invoice.invoice_legal_monetary_total.payable_amount)
+        fexml.set_element_amount(
+            './cac:RequestedMonetaryTotal/cbc:PayableAmount',
+            invoice.invoice_legal_monetary_total.payable_amount)
--- a/facho/fe/form_xml/invoice.py
+++ b/facho/fe/form_xml/invoice.py
--- a/facho/fe/form_xml/support_document.py
+++ b/facho/fe/form_xml/support_document.py
@@ -0,0 +1,647 @@
+from .. import fe
+from ..form import (
+    Amount, DebitNoteDocumentReference, CreditNoteDocumentReference,
+    InvoiceDocumentReference, TaxTotalOmit, WithholdingTaxTotalOmit
+)
+
+from collections import defaultdict
+from datetime import datetime
+# from .attached_document import *
+
+__all__ = ['DIANSupportDocumentXML']
+
+
+class DIANSupportDocumentXML(fe.FeXML):
+    """
+    DianSupportDocumentXML mapea objeto form.Invoice a XML segun
+    lo indicado para él Documento soporte en adquisiciones efectuadas con sujetos no obligados a expedir factura de venta o documento equivalente.
+    """
+
+    def __init__(self, invoice, tag_document='Invoice'):
+        super().__init__(tag_document, 'http://www.dian.gov.co/contratos/facturaelectronica/v1')
+
+        # DIAN 1.1.-2021: DSAB03
+        # DIAN 1.1.-2021: NSAB03
+        self.placeholder_for(
+            './ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:InvoiceControl')
+
+        # DIAN 1.1.-2021: DSAB13
+        # DIAN 1.1.-2021: NSAB13
+        self.placeholder_for(
+            './ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:InvoiceSource')
+
+        # DIAN 1.1.-2021: DSAB18
+        # DIAN 1.1.-2021: NSAB18
+        self.placeholder_for(
+            './ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:SoftwareProvider')
+
+        # DIAN 1.1.-2021: DSAB27
+        # DIAN 1.1.-2021: NSAB27
+        self.placeholder_for(
+            './ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:SoftwareSecurityCode')
+
+        # DIAN 1.1.-2021: DSAB30 DSAB31
+        # DIAN 1.1.-2021: NSAB30 NSAB31
+        self.placeholder_for(
+            './ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:AuthorizationProvider/sts:AuthorizationProviderID')
+
+        # ZE02 se requiere existencia para firmar
+        # DIAN 1.1.-2021: DSAA02 DSAB01
+        # DIAN 1.1.-2021: NSAA02 NSAB01
+        ublextension = self.fragment(
+            './ext:UBLExtensions/ext:UBLExtension', append=True)
+        # DIAN 1.1.-2021: DSAB02
+        # DIAN 1.1.-2021: NSAB02
+        extcontent = ublextension.find_or_create_element(
+            '/ext:UBLExtension/ext:ExtensionContent')
+        self.attach_invoice(invoice)
+
+    def set_supplier(fexml, invoice):
+        # DIAN 1.1.-2021: DSAJ01
+        # DIAN 1.1.-2021: NSAB01
+        fexml.placeholder_for('./cac:AccountingSupplierParty')
+
+        # DIAN 1.1.-2021: DSAJ02
+        # DIAN 1.1.-2021: NSAJ02
+        fexml.set_element(
+            './cac:AccountingSupplierParty/cbc:AdditionalAccountID',
+            invoice.invoice_supplier.organization_code)
+
+        # DIAN 1.1.-2021: DSAJ07 DSAJ08
+        # DIAN 1.1.-2021: NSAJ07 NSAJ08
+        fexml.placeholder_for(
+            './cac:AccountingSupplierParty/cac:Party/cac:PhysicalLocation/cac:Address')
+
+        # DIAN 1.1.-2021: DSAJ09
+        # DIAN 1.1.-2021: NSAJ09
+        fexml.set_element(
+            './cac:AccountingSupplierParty/cac:Party/cac:PhysicalLocation/cac:Address/cbc:ID',
+            invoice.invoice_supplier.address.city.code)
+
+        # DIAN 1.1.-2021: DSAJ10
+        # DIAN 1.1.-2021: NSAJ10
+        fexml.set_element(
+            './cac:AccountingSupplierParty/cac:Party/cac:PhysicalLocation/cac:Address/cbc:CityName',
+            invoice.invoice_supplier.address.city.name)
+
+        # DIAN 1.1.-2021: DSAJ73
+        # DIAN 1.1.-2021: NSAJ73
+        fexml.set_element(
+            './cac:AccountingSupplierParty/cac:Party/cac:PhysicalLocation/cac:Address/cbc:PostalZone',
+            invoice.invoice_supplier.address.postalzone.code)
+
+        # DIAN 1.1.-2021: DSAJ11
+        # DIAN 1.1.-2021: NSAJ11
+        fexml.set_element(
+            './cac:AccountingSupplierParty/cac:Party/cac:PhysicalLocation/cac:Address/cbc:CountrySubentity',
+            invoice.invoice_supplier.address.countrysubentity.name)
+
+        # DIAN 1.1.-2021: DSAJ12
+        # DIAN 1.1.-2021: NSAJ12
+        fexml.set_element(
+            './cac:AccountingSupplierParty/cac:Party/cac:PhysicalLocation/cac:Address/cbc:CountrySubentityCode',
+            invoice.invoice_supplier.address.countrysubentity.code)
+        # DIAN 1.1.-2021: NSAJ13 NSAJ14
+        fexml.set_element(
+            './cac:AccountingSupplierParty/cac:Party/cac:PhysicalLocation/cac:Address/cac:AddressLine/cbc:Line',
+            invoice.invoice_supplier.address.street)
+
+        # DIAN 1.1.-2021: DSAJ15 DSAJ16
+        # DIAN 1.1.-2021: NSAJ15 NSAJ16
+        fexml.set_element(
+            './cac:AccountingSupplierParty/cac:Party/cac:PhysicalLocation/cac:Address/cac:Country/cbc:IdentificationCode',
+            invoice.invoice_supplier.address.country.code)
+
+        # DIAN 1.1.-2021: DSAJ17
+        # DIAN 1.1.-2021: NSAJ17
+        fexml.set_element('./cac:AccountingSupplierParty/cac:Party/cac:PhysicalLocation/cac:Address/cac:Country/cbc:Name',
+                          invoice.invoice_supplier.address.country.name,
+                          # DIAN 1.1.-2021: DSAJ18
+                          # # DIAN 1.1.-2021: NSAJ18
+                          languageID='es')
+
+        supplier_company_id_attrs = fe.SCHEME_AGENCY_ATTRS.copy()
+        supplier_company_id_attrs.update(
+            {
+                'schemeID': invoice.invoice_supplier.ident.dv,
+                'schemeName': invoice.invoice_supplier.ident.type_fiscal})
+
+        # DIAN 1.1.-2021: DSAJ19
+        # DIAN 1.1.-2021: NSAJ19
+        fexml.placeholder_for(
+            './cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme')
+
+        # DIAN 1.1.-2021: DSAJ20
+        # DIAN 1.1.-2021: NSAJ20
+        fexml.set_element(
+            './cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme/cbc:RegistrationName',
+            invoice.invoice_supplier.legal_name)
+
+        # DIAN 1.1.-2021: DSAJ21
+        # DIAN 1.1.-2021: NSAJ21
+        fexml.set_element(
+            './cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme/cbc:CompanyID',
+            invoice.invoice_supplier.ident,
+            # DIAN 1.1.-2021: DSAJ22 DSAJ23 DSAJ24 DSAJ25
+            # DIAN 1.1.-2021: NSAJ22 NSAJ23 NSAJ24 NSAJ25
+            **supplier_company_id_attrs)
+
+        # DIAN 1.1.-2021: DSAJ26
+        # DIAN 1.1.-2021: NSAJ26
+        fexml.set_element(
+            './cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme/cbc:TaxLevelCode',
+            invoice.invoice_supplier.responsability_code,
+            listName=invoice.invoice_supplier.responsability_regime_code)
+
+        # DIAN 1.1.-2021: DSAJ39
+        # DIAN 1.1.-2021: NSAJ39
+        fexml.placeholder_for(
+            './cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme/cac:TaxScheme')
+
+        # DIAN 1.1.-2021: DSAJ40
+        # DIAN 1.1.-2021: NSAJ40
+        fexml.set_element(
+            './cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme/cac:TaxScheme/cbc:ID',
+            invoice.invoice_customer.tax_scheme.code)
+
+        # DIAN 1.1.-2021: DSAJ41
+        # DIAN 1.1.-2021: NSAJ41
+        fexml.set_element(
+            './cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme/cac:TaxScheme/cbc:Name',
+            invoice.invoice_customer.tax_scheme.name)
+
+    def set_customer(fexml, invoice):
+        # DIAN 1.1.-2021: DSAK01
+        # DIAN 1.1.-2021: NSAK01
+        fexml.placeholder_for('./cac:AccountingCustomerParty')
+
+        # DIAN 1.1.-2021: DSAK02
+        # DIAN 1.1.-2021: NSAK02
+        fexml.set_element(
+            './cac:AccountingCustomerParty/cbc:AdditionalAccountID',
+            invoice.invoice_customer.organization_code)
+
+        # DIAN 1.1.-2021: DSAK03
+        # DIAN 1.1.-2021: NSAK03
+        fexml.placeholder_for('./cac:AccountingCustomerParty/cac:Party')
+
+        # DIAN 1.1.-2021: DSAK19
+        # DIAN 1.1.-2021: NSAK19
+        fexml.placeholder_for(
+            './cac:AccountingCustomerParty/cac:Party/cac:PartyTaxScheme')
+
+        # DIAN 1.1.-2021: DSAK20
+        # DIAN 1.1.-2021: NSAK20
+        fexml.set_element(
+            './cac:AccountingCustomerParty/cac:Party/cac:PartyTaxScheme/cbc:RegistrationName',
+            invoice.invoice_customer.legal_name)
+
+        customer_company_id_attrs = fe.SCHEME_AGENCY_ATTRS.copy()
+        customer_company_id_attrs.update(
+            {
+                'schemeID': invoice.invoice_customer.ident.dv,
+                'schemeName': invoice.invoice_customer.ident.type_fiscal})
+
+        # DIAN 1.1.-2021: DSAK21
+        # DIAN 1.1.-2021: NSAK21
+        fexml.set_element(
+            './cac:AccountingCustomerParty/cac:Party/cac:PartyTaxScheme/cbc:CompanyID',
+            invoice.invoice_customer.ident,
+            # DIAN 1.1.-2021: DSAK22 DSAK23 DSAK24 DSAK25
+            # DIAN 1.1.-2021: NSAK22 NSAK23 NSAK24 NSAK25
+            **customer_company_id_attrs)
+
+        # DIAN 1.1.-2021: DSAK26
+        # DIAN 1.1.-2021: NSAK26
+        fexml.set_element(
+            './cac:AccountingCustomerParty/cac:Party/cac:PartyTaxScheme/cbc:TaxLevelCode',
+            invoice.invoice_customer.responsability_code)
+
+        # DIAN 1.1.-2021: DSAK39
+        # DIAN 1.1.-2021: NSAK39
+        fexml.placeholder_for(
+            './cac:AccountingCustomerParty/cac:Party/cac:PartyTaxScheme/cac:TaxScheme')
+
+        # DIAN 1.1.-2021: DSAK40
+        # DIAN 1.1.-2021: NSAK40
+        fexml.set_element(
+            './cac:AccountingCustomerParty/cac:Party/cac:PartyTaxScheme/cac:TaxScheme/cbc:ID',
+            invoice.invoice_customer.tax_scheme.code)
+
+        # DIAN 1.1.-2021: DSAK41
+        # DIAN 1.1.-2021: NSAK41
+        fexml.set_element(
+            './cac:AccountingCustomerParty/cac:Party/cac:PartyTaxScheme/cac:TaxScheme/cbc:Name',
+            invoice.invoice_customer.tax_scheme.name)
+
+    def set_payment_mean(fexml, invoice):
+        payment_mean = invoice.invoice_payment_mean
+
+        # DIAN 1.1.-2021: DSAN01 DSAN02
+        # DIAN 1.1.-2021: NSAN02 NSAN02
+        fexml.set_element('./cac:PaymentMeans/cbc:ID', payment_mean.id)
+
+        # DIAN 1.1.-2021: DSAN03
+        # DIAN 1.1.-2021: NSAN03
+        fexml.set_element(
+            './cac:PaymentMeans/cbc:PaymentMeansCode',
+            payment_mean.code)
+
+        # DIAN 1.1.-2021: DSAN04
+        # DIAN 1.1.-2021: NSAN04
+        fexml.set_element(
+            './cac:PaymentMeans/cbc:PaymentDueDate',
+            payment_mean.due_at.strftime('%Y-%m-%d'))
+
+        # DIAN 1.1.-2021: DSAN05
+        # DIAN 1.1.-2021: NSAN05
+        fexml.set_element(
+            './cac:PaymentMeans/cbc:PaymentID',
+            payment_mean.payment_id)
+
+    def set_element_amount_for(fexml, xml, xpath, amount):
+        if not isinstance(amount, Amount):
+            raise TypeError("amount not is Amount")
+
+        xml.set_element(xpath, amount, currencyID=amount.currency.code)
+
+    def set_element_amount(fexml, xpath, amount):
+        if not isinstance(amount, Amount):
+            raise TypeError("amount not is Amount")
+
+        fexml.set_element(xpath, amount, currencyID=amount.currency.code)
+
+    def set_legal_monetary(fexml, invoice):
+        # DIAN 1.1.-2021: DSAU01 DSAU02 DSAU03
+        # DIAN 1.1.-2021: NSAU01 NSAU02 NSAU03
+        fexml.set_element_amount(
+            './cac:LegalMonetaryTotal/cbc:LineExtensionAmount',
+            invoice.invoice_legal_monetary_total.line_extension_amount)
+
+        # DIAN 1.1.-2021: DSAU04 DSAU05
+        # DIAN 1.1.-2021: NSAU04 NSAU05
+        fexml.set_element_amount(
+            './cac:LegalMonetaryTotal/cbc:TaxExclusiveAmount',
+            invoice.invoice_legal_monetary_total.tax_exclusive_amount)
+
+        # DIAN 1.1.-2021: DSAU06 DSAU07
+        # DIAN 1.1.-2021: NSAU06 DSAU07
+        fexml.set_element_amount(
+            './cac:LegalMonetaryTotal/cbc:TaxInclusiveAmount',
+            invoice.invoice_legal_monetary_total.tax_inclusive_amount)
+
+        # DIAN 1.1.-2021: DSAU10 DSAU11
+        # DIAN 1.1.-2021: NSAU10 DSAU11
+        fexml.set_element_amount(
+            './cac:LegalMonetaryTotal/cbc:ChargeTotalAmount',
+            invoice.invoice_legal_monetary_total.charge_total_amount)
+
+        # DIAN 1.1.-2021: DSAU14 DSAU15
+        # DIAN 1.1.-2021: NSAU14 DSAU15
+        fexml.set_element_amount(
+            './cac:LegalMonetaryTotal/cbc:PayableAmount',
+            invoice.invoice_legal_monetary_total.payable_amount)
+
+    def _set_invoice_document_reference(fexml, reference):
+        fexml._do_set_billing_reference(
+            reference, 'cac:InvoiceDocumentReference')
+
+    def _set_credit_note_document_reference(fexml, reference):
+        fexml._do_set_billing_reference(
+            reference, 'cac:CreditNoteDocumentReference')
+
+    def _set_debit_note_document_reference(fexml, reference):
+        fexml._do_set_billing_reference(
+            reference, 'cac:DebitNoteDocumentReference')
+
+    def _do_set_billing_reference(fexml, reference, tag_document):
+
+        if tag_document == 'Invoice':
+            schemeName = 'CUFE-SHA384'
+        else:
+            schemeName = 'CUDS-SHA384'
+
+        fexml.set_element('./cac:BillingReference/%s/cbc:ID' % (tag_document),
+                          reference.ident)
+        fexml.set_element(
+            './cac:BillingReference/cac:InvoiceDocumentReference/cbc:UUID',
+            reference.uuid,
+            schemeName=schemeName)
+        fexml.set_element(
+            './cac:BillingReference/cac:InvoiceDocumentReference/cbc:IssueDate',
+            reference.date.strftime("%Y-%m-%d"))
+
+    def set_billing_reference(fexml, invoice):
+        reference = invoice.invoice_billing_reference
+        if reference is None:
+            return
+
+        if isinstance(reference, DebitNoteDocumentReference):
+            return fexml._set_debit_note_document_reference(reference)
+        if isinstance(reference, CreditNoteDocumentReference):
+            return fexml._set_credit_note_document_reference(reference)
+
+        if isinstance(reference, InvoiceDocumentReference):
+            return fexml._set_invoice_document_reference(reference)
+
+    def set_discrepancy_response(fexml, invoice):
+        reference = invoice.invoice_discrepancy_response
+        if reference is None:
+            return
+        if isinstance(reference, DebitNoteDocumentReference):
+            return fexml._set_debit_note_document_reference(reference)
+        if isinstance(reference, CreditNoteDocumentReference):
+            return fexml._set_credit_note_document_reference(reference)
+
+        if isinstance(reference, InvoiceDocumentReference):
+            return fexml._set_invoice_document_reference(reference)
+
+        fexml.set_element('./cac:DiscrepancyResponse/cbc:ReferenceID',
+                          reference.id)
+        fexml.set_element('./cac:DiscrepancyResponse/cbc:ResponseCode',
+                          reference.code)
+        fexml.set_element('./cac:DiscrepancyResponse/cbc:Description',
+                          reference.description)
+
+    def set_invoice_totals(fexml, invoice):
+        tax_amount_for = defaultdict(lambda: defaultdict(lambda: Amount(0.0)))
+        percent_for = defaultdict(lambda: None)
+
+        total_tax_amount = Amount(0.0)
+
+        for invoice_line in invoice.invoice_lines:
+            for subtotal in invoice_line.tax.subtotals:
+                if subtotal.scheme is not None:
+                    tax_amount_for[
+                        subtotal.scheme.code][
+                            'tax_amount'] += subtotal.tax_amount
+                    tax_amount_for[subtotal.scheme.code][
+                        'taxable_amount'] += invoice_line.taxable_amount
+
+                    # MACHETE ojo InvoiceLine.tax pasar a Invoice
+                    percent_for[subtotal.scheme.code] = subtotal.percent
+
+                total_tax_amount += subtotal.tax_amount
+
+        if total_tax_amount != Amount(0.0):
+            fexml.placeholder_for('./cac:TaxTotal')
+            fexml.set_element_amount('./cac:TaxTotal/cbc:TaxAmount',
+                                     total_tax_amount)
+
+        for index, item in enumerate(tax_amount_for.items()):
+            cod_impuesto, amount_of = item
+            next_append = index > 0
+
+            # DIAN 1.7.-2020: FAS01
+            line = fexml.fragment('./cac:TaxTotal', append=next_append)
+            # DIAN 1.7.-2020: FAU06
+            tax_amount = amount_of['tax_amount']
+            fexml.set_element_amount_for(line,
+                                         '/cac:TaxTotal/cbc:TaxAmount',
+                                         tax_amount)
+
+            # DIAN 1.7.-2020: FAS05
+            fexml.set_element_amount_for(
+                line,
+                '/cac:TaxTotal/cac:TaxSubtotal/cbc:TaxableAmount',
+                amount_of['taxable_amount'])
+
+            # DIAN 1.7.-2020: FAU06
+            fexml.set_element_amount_for(
+                line,
+                '/cac:TaxTotal/cac:TaxSubtotal/cbc:TaxAmount',
+                amount_of['tax_amount'])
+
+            # DIAN 1.7.-2020: FAS07
+            if percent_for[cod_impuesto]:
+                line.set_element('/cac:TaxTotal/cac:TaxSubtotal/cbc:Percent',
+                                 percent_for[cod_impuesto])
+
+            if percent_for[cod_impuesto]:
+                line.set_element(
+                    '/cac:TaxTotal/cac:TaxSubtotal/cac:TaxCategory/cbc:Percent',
+                    percent_for[cod_impuesto])
+
+            line.set_element(
+                '/cac:TaxTotal/cac:TaxSubtotal/cac:TaxCategory/cac:TaxScheme/cbc:ID',
+                cod_impuesto)
+            line.set_element(
+                '/cac:TaxTotal/cac:TaxSubtotal/cac:TaxCategory/cac:TaxScheme/cbc:Name', 'IVA')
+
+    # abstract method
+
+    def tag_document(fexml):
+        return 'Invoice'
+
+    # abstract method
+    def tag_document_concilied(fexml):
+        return 'Invoiced'
+
+    def set_invoice_line_withholding(fexml, line, invoice_line):
+        fexml.set_element_amount_for(line,
+                                     './cac:WithholdingTaxTotal/cbc:TaxAmount',
+                                     invoice_line.withholding_amount)
+        # DIAN 1.7.-2020: FAX05
+        fexml.set_element_amount_for(
+            line,
+            './cac:WithholdingTaxTotal/cac:TaxSubtotal/cbc:TaxableAmount',
+            invoice_line.withholding_taxable_amount)
+
+        for subtotal in invoice_line.withholding.subtotals:
+            line.set_element(
+                './cac:WithholdingTaxTotal/cac:TaxSubtotal/cbc:TaxAmount',
+                subtotal.tax_amount,
+                currencyID='COP')
+
+            if subtotal.percent is not None:
+                line.set_element(
+                    './cac:WithholdingTaxTotal/cac:TaxSubtotal/cac:TaxCategory/cbc:Percent',
+                    '%0.2f' %
+                    round(
+                        subtotal.percent,
+                        2))
+
+            if subtotal.scheme is not None:
+                # DIAN 1.7.-2020: FAX15
+                line.set_element(
+                    './cac:WithholdingTaxTotal/cac:TaxSubtotal/cac:TaxCategory/cac:TaxScheme/cbc:ID',
+                    subtotal.scheme.code)
+                line.set_element(
+                    './cac:WithholdingTaxTotal/cac:TaxSubtotal/cac:TaxCategory/cac:TaxScheme/cbc:Name',
+                    subtotal.scheme.name)
+
+    def set_invoice_line_tax(fexml, line, invoice_line):
+        fexml.set_element_amount_for(line,
+                                     './cac:TaxTotal/cbc:TaxAmount',
+                                     invoice_line.tax_amount)
+
+        # DIAN 1.7.-2020: FAX05
+        fexml.set_element_amount_for(
+            line,
+            './cac:TaxTotal/cac:TaxSubtotal/cbc:TaxableAmount',
+            invoice_line.taxable_amount)
+        for subtotal in invoice_line.tax.subtotals:
+            line.set_element(
+                './cac:TaxTotal/cac:TaxSubtotal/cbc:TaxAmount',
+                subtotal.tax_amount,
+                currencyID='COP')
+
+            if subtotal.percent is not None:
+                line.set_element(
+                    './cac:TaxTotal/cac:TaxSubtotal/cac:TaxCategory/cbc:Percent',
+                    '%0.2f' %
+                    round(
+                        subtotal.percent,
+                        2))
+
+            if subtotal.scheme is not None:
+                # DIAN 1.7.-2020: FAX15
+                line.set_element(
+                    './cac:TaxTotal/cac:TaxSubtotal/cac:TaxCategory/cac:TaxScheme/cbc:ID',
+                    subtotal.scheme.code)
+                line.set_element(
+                    './cac:TaxTotal/cac:TaxSubtotal/cac:TaxCategory/cac:TaxScheme/cbc:Name',
+                    subtotal.scheme.name)
+
+    def set_invoice_lines(fexml, invoice):
+        next_append = False
+        for index, invoice_line in enumerate(invoice.invoice_lines):
+            line = fexml.fragment(
+                './cac:%sLine' %
+                (fexml.tag_document()),
+                append=next_append)
+            next_append = True
+
+            line.set_element('./cbc:ID', index + 1)
+            line.set_element(
+                './cbc:%sQuantity' %
+                (fexml.tag_document_concilied()),
+                invoice_line.quantity,
+                unitCode='NAR')
+            fexml.set_element_amount_for(line,
+                                         './cbc:LineExtensionAmount',
+                                         invoice_line.total_amount)
+
+            period = line.fragment('./cac:InvoicePeriod')
+            period.set_element('./cbc:StartDate',
+                               datetime.now().strftime('%Y-%m-%d'))
+            period.set_element(
+                './cbc:DescriptionCode', '1')
+            period.set_element('./cbc:Description',
+                               'Por operación')
+
+            if not isinstance(invoice_line.tax, TaxTotalOmit):
+                fexml.set_invoice_line_tax(line, invoice_line)
+
+            if not isinstance(
+                    invoice_line.withholding,
+                    WithholdingTaxTotalOmit):
+                fexml.set_invoice_line_withholding(line, invoice_line)
+
+            line.set_element(
+                './cac:Item/cbc:Description',
+                invoice_line.item.description)
+
+            line.set_element(
+                './cac:Item/cac:StandardItemIdentification/cbc:ID',
+                invoice_line.item.id,
+                schemeID=invoice_line.item.scheme_id,
+                schemeName=invoice_line.item.scheme_name,
+                schemeAgencyID=invoice_line.item.scheme_agency_id)
+
+            line.set_element(
+                './cac:Price/cbc:PriceAmount',
+                invoice_line.price.amount,
+                currencyID=invoice_line.price.amount.currency.code)
+            # DIAN 1.7.-2020: FBB04
+            line.set_element('./cac:Price/cbc:BaseQuantity',
+                             invoice_line.quantity,
+                             unitCode=invoice_line.quantity.code)
+
+            for idx, charge in enumerate(invoice_line.allowance_charge):
+                next_append_charge = idx > 0
+                fexml.append_allowance_charge(
+                    line, index + 1, charge, append=next_append_charge)
+
+    def set_allowance_charge(fexml, invoice):
+        for idx, charge in enumerate(invoice.invoice_allowance_charge):
+            next_append = idx > 0
+            fexml.append_allowance_charge(
+                fexml, idx + 1, charge, append=next_append)
+
+    def append_allowance_charge(fexml, parent, idx, charge, append=False):
+        line = parent.fragment('./cac:AllowanceCharge', append=append)
+        # DIAN 1.7.-2020: FAQ02
+        line.set_element('./cbc:ID', idx)
+        # DIAN 1.7.-2020: FAQ03
+        line.set_element('./cbc:ChargeIndicator',
+                         str(charge.charge_indicator).lower())
+        if charge.reason:
+            line.set_element(
+                './cbc:AllowanceChargeReasonCode',
+                charge.reason.code)
+            line.set_element(
+                './cbc:allowanceChargeReason',
+                charge.reason.reason)
+        line.set_element('./cbc:MultiplierFactorNumeric',
+                         str(round(charge.multiplier_factor_numeric, 2)))
+        fexml.set_element_amount_for(line, './cbc:Amount', charge.amount)
+        fexml.set_element_amount_for(
+            line, './cbc:BaseAmount', charge.base_amount)
+
+    def attach_invoice(fexml, invoice):
+        """adiciona etiquetas a FEXML y retorna FEXML
+        en caso de fallar validacion retorna None"""
+
+        fexml.placeholder_for('./ext:UBLExtensions')
+        fexml.set_element('./cbc:UBLVersionID', 'UBL 2.1')
+        fexml.set_element(
+            './cbc:CustomizationID',
+            invoice.invoice_operation_type)
+        fexml.placeholder_for('./cbc:ProfileID')
+        fexml.placeholder_for('./cbc:ProfileExecutionID')
+        fexml.set_element('./cbc:ID', invoice.invoice_ident)
+        fexml.placeholder_for('./cbc:UUID')
+        fexml.set_element('./cbc:DocumentCurrencyCode', 'COP')
+        fexml.set_element(
+            './cbc:IssueDate',
+            invoice.invoice_issue.strftime('%Y-%m-%d'))
+        # DIAN 1.7.-2020: FAD10
+        fexml.set_element(
+            './cbc:IssueTime',
+            invoice.invoice_issue.strftime('%H:%M:%S-05:00'))
+        fexml.set_element(
+            './cbc:%sTypeCode' %
+            (fexml.tag_document()),
+            invoice.invoice_type_code,
+            listAgencyID='195',
+            listAgencyName='No matching global declaration available for the validation root',
+            listURI='http://www.dian.gov.co')
+        fexml.set_element('./cbc:LineCountNumeric', len(invoice.invoice_lines))
+        fexml.set_element(
+            './cac:%sPeriod/cbc:StartDate' %
+            (fexml.tag_document()),
+            invoice.invoice_period_start.strftime('%Y-%m-%d'))
+
+        fexml.set_element(
+            './cac:%sPeriod/cbc:EndDate' %
+            (fexml.tag_document()),
+            invoice.invoice_period_end.strftime('%Y-%m-%d'))
+
+        fexml.customize(invoice)
+
+        fexml.set_supplier(invoice)
+        fexml.set_customer(invoice)
+        fexml.set_legal_monetary(invoice)
+        fexml.set_invoice_totals(invoice)
+        fexml.set_invoice_lines(invoice)
+        fexml.set_payment_mean(invoice)
+        fexml.set_allowance_charge(invoice)
+        fexml.set_discrepancy_response(invoice)
+        fexml.set_billing_reference(invoice)
+
+        return fexml
+
+    def customize(fexml, invoice):
+        """adiciona etiquetas a FEXML y retorna FEXML
+        en caso de fallar validacion retorna None"""
--- a/facho/fe/form_xml/support_document_credit_note.py
+++ b/facho/fe/form_xml/support_document_credit_note.py
@@ -0,0 +1,25 @@
+# from .. import fe
+# from ..form import *
+from .support_document import DIANSupportDocumentXML
+
+__all__ = ['DIANSupportDocumentCreditNoteXML']
+
+
+class DIANSupportDocumentCreditNoteXML(DIANSupportDocumentXML):
+    """
+    DianInvoiceXML mapea objeto form.Invoice a XML segun
+    lo indicado para la facturacion electronica.
+    """
+
+    def __init__(self, invoice):
+        super(
+            DIANSupportDocumentCreditNoteXML,
+            self).__init__(
+            invoice,
+            'CreditNote')
+
+    def tag_document(fexml):
+        return 'CreditNote'
+
+    def tag_document_concilied(fexml):
+        return 'Credited'
--- a/facho/fe/form_xml/utils.py
+++ b/facho/fe/form_xml/utils.py
@@ -2,18 +2,30 @@ from .. import fe

 __all__ = ['DIANWrite', 'DIANWriteSigned']

+
 def DIANWrite(xml, filename):
    document = xml.tostring(xml_declaration=True, encoding='UTF-8')
    with open(filename, 'w') as f:
        f.write(document)

-        
-def DIANWriteSigned(xml, filename, private_key, passphrase, use_cache_policy=False, dian_signer=None):
-    document = xml.tostring(xml_declaration=True, encoding='UTF-8').encode('utf-8')
+
+def DIANWriteSigned(
+        xml,
+        filename,
+        private_key,
+        passphrase,
+        use_cache_policy=False,
+        dian_signer=None):
+    document = xml.tostring(
+        xml_declaration=True,
+        encoding='UTF-8').encode('utf-8')
    if dian_signer is None:
        dian_signer = fe.DianXMLExtensionSigner

-    signer = dian_signer(private_key, passphrase=passphrase, localpolicy=use_cache_policy)
+    signer = dian_signer(
+        private_key,
+        passphrase=passphrase,
+        localpolicy=use_cache_policy)

    with open(filename, 'w') as f:
        f.write(signer.sign_xml_string(document))
--- a/facho/fe/model/init.py
+++ b/facho/fe/model/init.py
@@ -0,0 +1,367 @@
+import facho.model as model
+import facho.model.fields as fields
+import facho.fe.form as form
+from facho import fe
+from .common import *
+from . import dian
+
+from datetime import date, datetime
+from collections import defaultdict
+from copy import copy
+import hashlib
+
+
+
+class PhysicalLocation(model.Model):
+    __name__ = 'PhysicalLocation'
+
+    address = fields.Many2One(Address, namespace='cac')
+    
+class PartyTaxScheme(model.Model):
+    __name__ = 'PartyTaxScheme'
+
+    registration_name = fields.Many2One(Name, name='RegistrationName', namespace='cbc')
+    company_id = fields.Many2One(ID, name='CompanyID', namespace='cbc')
+    tax_level_code = fields.Many2One(ID, name='TaxLevelCode', namespace='cbc', default='ZZ')
+
+
+class Party(model.Model):
+    __name__ = 'Party'
+
+    id = fields.Virtual(setter='_on_set_id')
+    name = fields.Many2One(PartyName, namespace='cac')
+
+    tax_scheme = fields.Many2One(PartyTaxScheme, namespace='cac')
+    location = fields.Many2One(PhysicalLocation, namespace='cac')
+    contact = fields.Many2One(Contact, namespace='cac')
+    
+    def _on_set_id(self, name, value):
+        self.tax_scheme.company_id = value
+        return value
+
+class AccountingCustomerParty(model.Model):
+    __name__ = 'AccountingCustomerParty'
+
+    party = fields.Many2One(Party, namespace='cac')
+
+class AccountingSupplierParty(model.Model):
+    __name__ = 'AccountingSupplierParty'
+
+    party = fields.Many2One(Party, namespace='cac')
+
+class Quantity(model.Model):
+    __name__  = 'Quantity'
+
+    code = fields.Attribute('unitCode', default='NAR')
+
+    def __setup__(self):
+        self.value = 0
+
+    def __default_set__(self, value):
+        self.value = value
+        return value
+
+    def __default_get__(self, name, value):
+        return self.value
+
+class Amount(model.Model):
+    __name__ = 'Amount'
+
+    currency = fields.Attribute('currencyID', default='COP')
+    value = fields.Amount(name='amount', default=0.00, precision=2)
+
+    def __default_set__(self, value):
+        self.value = value
+        return value
+
+    def __default_get__(self, name, value):
+        return self.value
+
+    def __str__(self):
+        return str(self.value)
+
+class Price(model.Model):
+    __name__ = 'Price'
+
+    amount = fields.Many2One(Amount, name='PriceAmount', namespace='cbc')
+    
+    def __default_set__(self, value):
+        self.amount = value
+        return value
+
+    def __default_get__(self, name, value):
+        return self.amount
+
+class Percent(model.Model):
+    __name__ = 'Percent'
+
+class TaxScheme(model.Model):
+    __name__ = 'TaxScheme'
+
+    id = fields.Many2One(ID, namespace='cbc')
+    name= fields.Many2One(Name, namespace='cbc')
+
+class TaxCategory(model.Model):
+    __name__ = 'TaxCategory'
+
+    percent = fields.Many2One(Percent, namespace='cbc')
+    tax_scheme = fields.Many2One(TaxScheme, namespace='cac')
+    
+class TaxSubTotal(model.Model):
+    __name__ = 'TaxSubTotal'
+
+    taxable_amount = fields.Many2One(Amount, name='TaxableAmount', namespace='cbc', default=0.00)
+    tax_amount = fields.Many2One(Amount, name='TaxAmount', namespace='cbc', default=0.00)
+    tax_percent = fields.Many2One(Percent, namespace='cbc')
+    tax_category = fields.Many2One(TaxCategory, namespace='cac')
+
+    percent = fields.Virtual(setter='set_category', getter='get_category')
+    scheme = fields.Virtual(setter='set_category', getter='get_category')
+
+    def set_category(self, name, value):
+        if name == 'percent':
+            self.tax_category.percent = value
+            # TODO(bit4bit) debe variar en conjunto?
+            self.tax_percent = value
+        elif name == 'scheme':
+            self.tax_category.tax_scheme.id = value
+
+        return value
+
+    def get_category(self, name, value):
+        if name == 'percent':
+            return value
+        elif name == 'scheme':
+            return self.tax_category.tax_scheme
+
+class TaxTotal(model.Model):
+    __name__ = 'TaxTotal'
+
+    tax_amount = fields.Many2One(Amount, name='TaxAmount', namespace='cbc', default=0.00)
+    subtotals = fields.One2Many(TaxSubTotal, namespace='cac')
+
+
+class AllowanceCharge(model.Model):
+    __name__ = 'AllowanceCharge'
+
+    amount = fields.Many2One(Amount, namespace='cbc')
+    is_discount = fields.Virtual(default=False)
+    
+    def isCharge(self):
+        return self.is_discount == False
+
+    def isDiscount(self):
+        return self.is_discount == True
+
+class Taxes:
+    class Scheme:
+        def __init__(self, scheme):
+            self.scheme = scheme
+
+    class Iva(Scheme):
+        def __init__(self, percent):
+            super().__init__('01')
+            self.percent = percent
+
+        def calculate(self, amount):
+            return form.Amount(amount) * form.Amount(self.percent / 100)
+    
+class InvoiceLine(model.Model):
+    __name__ = 'InvoiceLine'
+
+    id = fields.Many2One(ID, namespace='cbc')
+    quantity = fields.Many2One(Quantity, name='InvoicedQuantity', namespace='cbc')
+    taxtotal = fields.Many2One(TaxTotal, namespace='cac')
+    price = fields.Many2One(Price, namespace='cac')
+    amount = fields.Many2One(Amount, name='LineExtensionAmount', namespace='cbc')
+    allowance_charge = fields.One2Many(AllowanceCharge, 'cac')
+    tax_amount = fields.Virtual(getter='get_tax_amount')
+    
+    def __setup__(self):
+        self._taxs = defaultdict(list)
+        self._subtotals = {}
+
+    def add_tax(self, tax):
+        if not isinstance(tax, Taxes.Scheme):
+            raise ValueError('tax expected TaxIva')
+
+        # inicialiamos subtotal para impuesto
+        if not tax.scheme in self._subtotals:
+            subtotal = self.taxtotal.subtotals.create()
+            subtotal.scheme = tax.scheme
+            
+            self._subtotals[tax.scheme] = subtotal
+        
+        self._taxs[tax.scheme].append(tax)
+
+    def get_tax_amount(self, name, value):
+        total = form.Amount(0)
+        for (scheme, subtotal) in self._subtotals.items():
+            total += subtotal.tax_amount
+
+        return total
+
+    @fields.on_change(['price', 'quantity'])
+    def update_amount(self, name, value):
+        charge = form.AmountCollection(self.allowance_charge)\
+            .filter(lambda charge: charge.isCharge())\
+            .map(lambda charge: charge.amount)\
+            .sum()
+
+        discount = form.AmountCollection(self.allowance_charge)\
+            .filter(lambda charge: charge.isDiscount())\
+            .map(lambda charge: charge.amount)\
+            .sum()
+
+        total = form.Amount(self.quantity)  * form.Amount(self.price)
+        self.amount = total + charge - discount
+        
+        for (scheme, subtotal) in self._subtotals.items():
+            subtotal.tax_amount = 0
+
+        for (scheme, taxes) in self._taxs.items():
+            for tax in taxes:
+                self._subtotals[scheme].tax_amount += tax.calculate(self.amount)
+
+class LegalMonetaryTotal(model.Model):
+    __name__ = 'LegalMonetaryTotal'
+
+    line_extension_amount = fields.Many2One(Amount, name='LineExtensionAmount', namespace='cbc', default=0)
+
+    tax_exclusive_amount = fields.Many2One(Amount, name='TaxExclusiveAmount', namespace='cbc', default=form.Amount(0))
+    tax_inclusive_amount = fields.Many2One(Amount, name='TaxInclusiveAmount', namespace='cbc', default=form.Amount(0))
+    charge_total_amount = fields.Many2One(Amount, name='ChargeTotalAmount', namespace='cbc', default=form.Amount(0))
+    payable_amount = fields.Many2One(Amount, name='PayableAmount', namespace='cbc', default=form.Amount(0))
+
+    @fields.on_change(['tax_inclusive_amount', 'charge_total'])
+    def update_payable_amount(self, name, value):
+        self.payable_amount = self.tax_inclusive_amount + self.charge_total_amount
+
+
+class DIANExtensionContent(model.Model):
+    __name__ = 'ExtensionContent'
+    
+    dian = fields.Many2One(dian.DianExtensions, name='DianExtensions', namespace='sts')
+
+class DIANExtension(model.Model):
+    __name__ = 'UBLExtension'
+
+    content = fields.Many2One(DIANExtensionContent, namespace='ext')
+
+    def __default_get__(self, name, value):
+        return self.content.dian
+
+class UBLExtension(model.Model):
+    __name__ = 'UBLExtension'
+
+    content = fields.Many2One(Element, name='ExtensionContent', namespace='ext', default='')
+    
+class UBLExtensions(model.Model):
+    __name__ = 'UBLExtensions'
+
+    dian = fields.Many2One(DIANExtension, namespace='ext', create=True)
+    extension = fields.Many2One(UBLExtension, namespace='ext', create=True)
+
+class Invoice(model.Model):
+    __name__ = 'Invoice'
+    __namespace__ = fe.NAMESPACES
+
+    _ubl_extensions = fields.Many2One(UBLExtensions, namespace='ext')
+    # nos interesa el acceso solo los atributos de la DIAN
+    dian = fields.Virtual(getter='get_dian_extension')
+    
+    profile_id = fields.Many2One(Element, name='ProfileID', namespace='cbc', default='DIAN 2.1')
+    profile_execute_id = fields.Many2One(Element, name='ProfileExecuteID', namespace='cbc', default='2')
+    
+    id = fields.Many2One(ID, namespace='cbc')
+    issue = fields.Virtual(setter='set_issue')
+    issue_date = fields.Many2One(Date, name='IssueDate', namespace='cbc')
+    issue_time = fields.Many2One(Time, name='IssueTime', namespace='cbc')
+    
+    period = fields.Many2One(Period, name='InvoicePeriod', namespace='cac')
+
+    supplier = fields.Many2One(AccountingSupplierParty, namespace='cac')
+    customer = fields.Many2One(AccountingCustomerParty, namespace='cac')
+    legal_monetary_total = fields.Many2One(LegalMonetaryTotal, namespace='cac')
+    lines = fields.One2Many(InvoiceLine, namespace='cac')
+    
+    taxtotal_01 = fields.Many2One(TaxTotal)
+    taxtotal_04 = fields.Many2One(TaxTotal)
+    taxtotal_03 = fields.Many2One(TaxTotal)
+
+    def __setup__(self):
+        self._namespace_prefix = 'fe'
+        # Se requieren minimo estos impuestos para
+        # validar el cufe
+        self._subtotal_01 = self.taxtotal_01.subtotals.create()
+        self._subtotal_01.scheme = '01'
+        self._subtotal_01.percent = 19.0
+
+        self._subtotal_04 = self.taxtotal_04.subtotals.create()
+        self._subtotal_04.scheme = '04'
+        
+        self._subtotal_03 = self.taxtotal_03.subtotals.create()
+        self._subtotal_03.scheme = '03'
+
+    def cufe(self, token, environment):
+
+        valor_bruto = self.legal_monetary_total.line_extension_amount
+        valor_total_pagar = self.legal_monetary_total.payable_amount
+
+        valor_impuesto_01 = form.Amount(0.0)
+        valor_impuesto_04 = form.Amount(0.0)
+        valor_impuesto_03 = form.Amount(0.0)
+
+        for line in self.lines:
+            for subtotal in line.taxtotal.subtotals:
+                if subtotal.scheme.id == '01':
+                    valor_impuesto_01 += subtotal.tax_amount
+                elif subtotal.scheme.id == '04':
+                    valor_impuesto_04 += subtotal.tax_amount
+                elif subtotal.scheme.id == '03':
+                    valor_impuesto_03 += subtotal.tax_amount
+
+        pattern = [
+            '%s' % str(self.id),
+            '%s' % str(self.issue_date),
+            '%s' % str(self.issue_time),
+            valor_bruto.truncate_as_string(2),
+            '01', valor_impuesto_01.truncate_as_string(2),
+            '04', valor_impuesto_04.truncate_as_string(2),
+            '03', valor_impuesto_03.truncate_as_string(2),
+            valor_total_pagar.truncate_as_string(2),
+            str(self.supplier.party.id),
+            str(self.customer.party.id),
+            str(token),
+            str(environment)
+        ]
+
+        cufe = "".join(pattern)
+        h = hashlib.sha384()
+        h.update(cufe.encode('utf-8'))
+        return h.hexdigest()
+
+    @fields.on_change(['lines'])
+    def update_legal_monetary_total(self, name, value):
+        self.legal_monetary_total.line_extension_amount = 0
+        self.legal_monetary_total.tax_inclusive_amount = 0
+
+        for line in self.lines:
+            self.legal_monetary_total.line_extension_amount += line.amount
+            self.legal_monetary_total.tax_inclusive_amount += line.amount + line.tax_amount
+
+    def set_issue(self, name, value):
+        if not isinstance(value, datetime):
+            raise ValueError('expected type datetime')
+        self.issue_date = value.date()
+        self.issue_time = value
+
+    def get_dian_extension(self, name, _value):
+        return self._ubl_extensions.dian
+
+    def to_xml(self, **kw):
+        # al generar documento el namespace
+        # se hace respecto a la raiz
+        return super().to_xml(**kw)\
+            .replace("fe:", "")\
+            .replace("xmlns:fe", "xmlns")
--- a/facho/fe/model/common.py
+++ b/facho/fe/model/common.py
@@ -0,0 +1,90 @@
+import facho.model as model
+import facho.model.fields as fields
+
+from datetime import date, datetime
+
+__all__ = ['Element', 'PartyName', 'Name', 'Date', 'Time', 'Period', 'ID', 'Address', 'Country', 'Contact']
+
+class Element(model.Model):
+    """
+    Lo usuamos para elementos que solo manejan contenido
+    """
+    __name__ = 'Element'
+
+class Name(model.Model):
+    __name__ = 'Name'
+
+class Date(model.Model):
+    __name__ = 'Date'
+
+    def __default_set__(self, value):
+        if isinstance(value, str):
+            return value
+        if isinstance(value, date):
+            return value.isoformat()
+
+    def __str__(self):
+        return str(self._value)
+
+class Time(model.Model):
+    __name__ = 'Time'
+
+    def __default_set__(self, value):
+        if isinstance(value, str):
+            return value
+        if isinstance(value, date):
+            return value.strftime('%H:%M:%S-05:00')
+
+    def __str__(self):
+        return str(self._value)
+
+class Period(model.Model):
+    __name__ = 'Period'
+
+    start_date = fields.Many2One(Date, name='StartDate', namespace='cbc')
+
+    end_date = fields.Many2One(Date, name='EndDate', namespace='cbc')
+
+class ID(model.Model):
+    __name__ = 'ID'
+
+    def __default_get__(self, name, value):
+        return self._value
+
+    def __str__(self):
+        return str(self._value)
+
+
+class Country(model.Model):
+    __name__ = 'Country'
+
+    name = fields.Many2One(Element, name='Name', namespace='cbc')
+
+class Address(model.Model):
+    __name__ = 'Address'
+
+    #DIAN 1.7.-2020: FAJ08
+    #DIAN 1.7.-2020: CAJ09
+    id = fields.Many2One(Element, name='ID', namespace='cbc')
+
+    #DIAN 1.7.-2020: FAJ09
+    #DIAN 1.7.-2020: CAJ10
+    city = fields.Many2One(Element, name='CityName', namespace='cbc')
+    
+
+class PartyName(model.Model):
+    __name__ = 'PartyName'
+    
+    name = fields.Many2One(Name, namespace='cbc')
+
+    def __default_set__(self, value):
+        self.name = value
+        return value
+
+    def __default_get__(self, name, value):
+        return self.name
+
+class Contact(model.Model):
+    __name__ = 'Contact'
+
+    email = fields.Many2One(Name, name='ElectronicEmail', namespace='cbc')
--- a/facho/fe/model/dian.py
+++ b/facho/fe/model/dian.py
@@ -0,0 +1,58 @@
+import facho.model as model
+import facho.model.fields as fields
+from .common import *
+
+class DIANElement(Element):
+    """
+    Elemento que contiene atributos por defecto.
+    
+    Puede extender esta clase y modificar los atributos nuevamente
+    """
+    __name__ = 'DIANElement'
+    
+    scheme_id = fields.Attribute('schemeID', default='4')
+    scheme_name = fields.Attribute('schemeName', default='31')
+    scheme_agency_name = fields.Attribute('schemeAgencyName', default='CO, DIAN (Dirección de Impuestos y Aduanas Nacionales)')
+    scheme_agency_id = fields.Attribute('schemeAgencyID', default='195')
+    
+class SoftwareProvider(model.Model):
+    __name__ = 'SoftwareProvider'
+
+    provider_id = fields.Many2One(Element, name='ProviderID', namespace='sts')
+    software_id = fields.Many2One(Element, name='SoftwareID', namespace='sts')
+
+class InvoiceSource(model.Model):
+    __name__ = 'InvoiceSource'
+
+    identification_code = fields.Many2One(Element, name='IdentificationCode', namespace='sts', default='CO')
+    
+class AuthorizedInvoices(model.Model):
+    __name__ = 'AuthorizedInvoices'
+
+    prefix = fields.Many2One(Element, name='Prefix', namespace='sts')
+    from_range = fields.Many2One(Element, name='From', namespace='sts')
+    to_range = fields.Many2One(Element, name='To', namespace='sts')
+    
+class InvoiceControl(model.Model):
+    __name__ = 'InvoiceControl'
+
+    authorization = fields.Many2One(Element, name='InvoiceAuthorization', namespace='sts')
+    period = fields.Many2One(Period, name='AuthorizationPeriod', namespace='sts')
+    invoices = fields.Many2One(AuthorizedInvoices, namespace='sts')
+
+class AuthorizationProvider(model.Model):
+    __name__ = 'AuthorizationProvider'
+
+
+    id = fields.Many2One(DIANElement, name='AuthorizationProviderID', namespace='sts', default='800197268')
+    
+class DianExtensions(model.Model):
+    __name__ = 'DianExtensions'
+
+    authorization_provider = fields.Many2One(AuthorizationProvider, namespace='sts', create=True)
+
+    software_security_code = fields.Many2One(Element, name='SoftwareSecurityCode', namespace='sts')
+    software_provider = fields.Many2One(SoftwareProvider, namespace='sts')
+    source = fields.Many2One(InvoiceSource, namespace='sts')
+    control = fields.Many2One(InvoiceControl, namespace='sts')
+
--- a/facho/fe/nomina/trabajador/init.py
+++ b/facho/fe/nomina/trabajador/init.py
@@ -1,4 +1,4 @@
-from dataclasses import dataclass
+from dataclasses import dataclass, field

 from ..amount import Amount

@@ -29,7 +29,7 @@ class Trabajador:

    codigo_trabajador: str = None
    otros_nombres: str = None
-    sub_tipo: SubTipoTrabajador = SubTipoTrabajador(code='00')
+    sub_tipo: SubTipoTrabajador = field(default_factory=lambda: SubTipoTrabajador(code='00'))

    def apply(self, fragment):
        fragment.set_attributes('./Trabajador',
--- a/facho/model/init.py
+++ b/facho/model/init.py
@@ -0,0 +1,175 @@
+from .fields import Field
+from collections import defaultdict
+
+class ModelMeta(type):
+    def __new__(cls, name, bases, ns):
+        new = type.__new__(cls, name, bases, ns)
+
+        # mapeamos asignacion en declaracion de clase
+        # a attributo de objeto
+        if '__name__' in ns:
+            new.__name__ = ns['__name__']
+        if '__namespace__' in ns:
+            new.__namespace__ = ns['__namespace__']
+        else:
+            new.__namespace__ = {}
+            
+        return new
+
+class ModelBase(object, metaclass=ModelMeta):
+
+    def __new__(cls, *args, **kwargs):
+        obj = super().__new__(cls, *args, **kwargs)
+        obj._xml_attributes = {}
+        obj._fields = {}
+        obj._value = None
+        obj._namespace_prefix = None
+        obj._on_change_fields = defaultdict(list)
+        obj._order_fields = []
+        
+        def on_change_fields_for_function():
+            # se recorre arbol de herencia buscando attributo on_changes
+            for parent_cls in type(obj).__mro__:
+                for parent_attr in dir(parent_cls):
+                    parent_meth = getattr(parent_cls, parent_attr, None)
+                    if not callable(parent_meth):
+                        continue
+                    on_changes = getattr(parent_meth, 'on_changes', None)
+                    if on_changes:
+                        return (parent_meth, on_changes)
+            return (None, [])
+
+        # forzamos registros de campos al modelo
+        # al instanciar
+        for (key, v) in type(obj).__dict__.items():
+            if isinstance(v, fields.Field):
+                obj._order_fields.append(key)
+
+            if isinstance(v, fields.Attribute) or isinstance(v, fields.Many2One) or isinstance(v, fields.Function) or isinstance(v, fields.Amount):
+                if hasattr(v, 'default') and v.default is not None:
+                    setattr(obj, key, v.default)
+                if hasattr(v, 'create') and v.create == True:
+                    setattr(obj, key, '')
+
+                # register callbacks for changes
+                (fun, on_change_fields) = on_change_fields_for_function()
+                for field in on_change_fields:
+                    obj._on_change_fields[field].append(fun)
+
+
+        # post inicializacion del objeto
+        obj.__setup__()
+        return obj
+
+    def _set_attribute(self, field, name, value):
+        self._xml_attributes[field] = (name, value)
+
+    def __setitem__(self, key, val):
+        self._xml_attributes[key] = val
+
+    def __getitem__(self, key):
+        return self._xml_attributes[key]
+
+    def _get_field(self, name):
+        return self._fields[name]
+
+    def _set_field(self, name, field):
+        field.name = name
+        self._fields[name] = field
+
+    def _set_content(self, value):
+        default = self.__default_set__(value)
+        if default is not None:
+            self._value = default
+
+    def to_xml(self):
+        """
+        Genera xml del modelo y sus relaciones
+        """
+        def _hook_before_xml():
+            self.__before_xml__()
+            for field in self._fields.values():
+                if hasattr(field, '__before_xml__'):
+                    field.__before_xml__()
+                    
+        _hook_before_xml()
+
+        tag = self.__name__
+        ns = ''
+        if self._namespace_prefix is not None:
+            ns = "%s:" % (self._namespace_prefix)
+
+        pair_attributes = ["%s=\"%s\"" % (k, v) for (k, v) in self._xml_attributes.values()]
+
+        for (prefix, url) in self.__namespace__.items():
+            pair_attributes.append("xmlns:%s=\"%s\"" % (prefix, url))
+        attributes = ""
+        if pair_attributes:
+            attributes = " " + " ".join(pair_attributes)
+
+        content = ""
+
+        ordered_fields = {}
+        for name in self._order_fields:
+            if name in self._fields:
+                ordered_fields[name] = True
+            else:
+                for key in self._fields.keys():
+                    if key.startswith(name):
+                        ordered_fields[key] = True
+
+        for name in ordered_fields.keys():
+            value = self._fields[name]
+            # al ser virtual no adicinamos al arbol xml
+            if hasattr(value, 'virtual') and value.virtual:
+                continue
+
+            if hasattr(value, 'to_xml'):
+                content += value.to_xml()
+            elif isinstance(value, str):
+                content += value
+
+        if self._value is not None:
+            content += str(self._value)
+
+        if content == "":
+            return "<%s%s%s/>" % (ns, tag, attributes)
+        else:
+            return "<%s%s%s>%s</%s%s>" % (ns, tag, attributes, content, ns, tag)
+
+    def __str__(self):
+        return self.to_xml()
+
+
+class Model(ModelBase):
+    """
+    Model clase que representa el modelo
+    """
+
+    def __before_xml__(self):
+        """
+        Ejecuta antes de generar el xml, este
+        metodo sirve para realizar actualizaciones
+        en los campos en el ultimo momento
+        """
+        pass
+
+    def __default_set__(self, value):
+        """
+        Al asignar un valor al modelo atraves de una relacion (person.relation = '33')
+        se puede personalizar como hacer esta asignacion.
+        """
+        return value
+
+    def __default_get__(self, name, value):
+        """
+        Al obtener el valor atraves de una relacion (age = person.age)
+        Retorno de valor por defecto
+        """
+        return value
+
+    def __setup__(self):
+        """
+        Inicializar modelo
+        """
+        
--- a/facho/model/fields/init.py
+++ b/facho/model/fields/init.py
@@ -0,0 +1,21 @@
+from .attribute import Attribute
+from .many2one import Many2One
+from .one2many import One2Many
+from .function import Function
+from .virtual import Virtual
+from .field import Field
+from .amount import Amount
+
+__all__ = [Attribute, One2Many, Many2One, Virtual, Field, Amount]
+
+def on_change(fields):
+    from functools import wraps
+    
+    def decorator(func):
+        setattr(func, 'on_changes', fields)
+
+        @wraps(func)
+        def wrapper(self, *arg, **kwargs):
+            return func(self, *arg, **kwargs)
+        return wrapper
+    return decorator
--- a/facho/model/fields/amount.py
+++ b/facho/model/fields/amount.py
@@ -0,0 +1,35 @@
+from .field import Field
+from collections import defaultdict
+import facho.fe.form as form
+
+class Amount(Field):
+    """
+    Amount representa un campo moneda usando form.Amount
+    """
+
+    def __init__(self, name=None, default=None, precision=6):
+        self.field_name = name
+        self.values = {}
+        self.default = default
+        self.precision = precision
+        
+    def __get__(self, model, cls):
+        if model is None:
+            return self
+        assert self.name is not None
+ 
+        self.__init_value(model)
+        model._set_field(self.name, self)
+        return self.values[model]
+
+    def __set__(self, model, value):
+        assert self.name is not None
+        self.__init_value(model)
+        model._set_field(self.name, self)
+        self.values[model] = form.Amount(value, precision=self.precision)
+
+        self._changed_field(model, self.name, value)
+
+    def __init_value(self, model):
+        if model not in self.values:
+            self.values[model] = form.Amount(self.default or 0)
--- a/facho/model/fields/attribute.py
+++ b/facho/model/fields/attribute.py
@@ -0,0 +1,29 @@
+from .field import Field
+
+class Attribute(Field):
+    """
+    Attribute es un atributo del elemento actual.
+    """
+    
+    def __init__(self, name, default=None):
+        """
+        :param name: nombre del atribute
+        :param default: valor por defecto del attributo
+        """
+        self.attribute = name
+        self.value = default
+        self.default = default
+
+    def __get__(self, inst, cls):
+        if inst is None:
+            return self
+
+        assert self.name is not None
+        return self.value
+
+    def __set__(self, inst, value):
+        assert self.name is not None
+        self.value = value
+        
+        self._changed_field(inst, self.name, value)
+        inst._set_attribute(self.name, self.attribute, value)
--- a/facho/model/fields/field.py
+++ b/facho/model/fields/field.py
@@ -0,0 +1,60 @@
+import warnings
+
+class Field:
+    def __set_name__(self, owner, name, virtual=False):
+        self.name = name
+        self.virtual = virtual
+
+    def __get__(self, inst, cls):
+        if inst is None:
+            return self
+        assert self.name is not None
+        return inst._fields[self.name]
+
+    def __set__(self, inst, value):
+        assert self.name is not None
+        inst._fields[self.name] = value
+
+    def _set_namespace(self, inst, name, namespaces):
+        if name is None:
+            return
+
+        #TODO(bit4bit) aunque las pruebas confirmar
+        #que si se escribe el namespace que es
+        #no ahi confirmacion de declaracion previa del namespace
+
+        inst._namespace_prefix = name
+
+    def _call(self, inst, method, *args):
+        call = getattr(inst, method or '', None)
+
+        if callable(call):
+            return call(*args)
+
+    def _create_model(self, inst, name=None, model=None, attribute=None, namespace=None):
+        try:
+            return inst._fields[self.name]
+        except KeyError:
+            if model is not None:
+                obj = model()
+            else:
+                obj = self.model()
+            if name is not None:
+                obj.__name__ = name
+
+            if namespace:
+                self._set_namespace(obj, namespace, inst.__namespace__)
+            else:
+                self._set_namespace(obj, self.namespace, inst.__namespace__)
+
+            if attribute:
+                inst._fields[attribute] = obj
+            else:
+                inst._fields[self.name] = obj
+
+            return obj
+
+    def _changed_field(self, inst, name, value):
+        for fun in inst._on_change_fields[name]:
+            fun(inst, name, value)
+            
--- a/facho/model/fields/function.py
+++ b/facho/model/fields/function.py
@@ -0,0 +1,36 @@
+from .field import Field
+
+class Function(Field):
+    """
+    Permite modificar el modelo cuando se intenta,
+    obtener el valor de este campo.
+
+    DEPRECATED usar Virtual
+    """
+    def __init__(self, field, getter=None, default=None):
+        self.field = field
+        self.getter = getter
+        self.default = default
+
+    def __get__(self, inst, cls):
+        if inst is None:
+            return self
+        assert self.name is not None
+
+        # si se indica `field` se adiciona
+        # como campo del modelo, esto es
+        # que se serializa a xml
+        inst._set_field(self.name, self.field)
+
+        if self.getter is not None:
+            value = self._call(inst, self.getter, self.name, self.field)
+
+            if value is not None:
+                self.field.__set__(inst, value)
+
+        return self.field
+
+    def __set__(self, inst, value):
+        inst._set_field(self.name, self.field)
+        self._changed_field(inst, self.name, value)
+        self.field.__set__(inst, value)
--- a/facho/model/fields/many2one.py
+++ b/facho/model/fields/many2one.py
@@ -0,0 +1,62 @@
+from .field import Field
+from collections import defaultdict
+
+class Many2One(Field):
+    """
+    Many2One describe una relacion pertenece a.
+    """
+
+    def __init__(self, model, name=None, setter=None, namespace=None, default=None, virtual=False, create=False):
+        """
+        :param model: nombre del modelo destino
+        :param name: nombre del elemento xml
+        :param setter: nombre de methodo usado cuando se asigna usa como asignacion ejemplo model.relation = 3
+        :param namespace: sufijo del namespace al que pertenece el elemento
+        :param default: el valor o contenido por defecto
+        :param virtual: se crea la relacion por no se ve reflejada en el xml final
+        :param create: fuerza la creacion del elemento en el xml, ya que los elementos no son creados sino tienen contenido
+        """
+        self.model = model
+        self.setter = setter
+        self.namespace = namespace
+        self.field_name = name
+        self.default = default
+        self.virtual = virtual
+        self.relations = defaultdict(dict)
+        self.create = create
+
+    def __get__(self, inst, cls):
+        if inst is None:
+            return self
+        assert self.name is not None
+
+        if self.name in self.relations:
+            value = self.relations[inst][self.name]
+        else:
+            value = self._create_model(inst, name=self.field_name)
+        self.relations[inst][self.name] = value
+
+        # se puede obtener directamente un valor indicado por el modelo
+        if hasattr(value, '__default_get__'):
+            return value.__default_get__(self.name, value)
+        elif hasattr(inst, '__default_get__'):
+            return inst.__default_get__(self.name, value)
+        else:
+            return value
+        
+    def __set__(self, inst, value):
+        assert self.name is not None
+        inst_model = self._create_model(inst, name=self.field_name, model=self.model)
+        self.relations[inst][self.name] = inst_model
+
+        # si hay setter manual se ejecuta
+        # de lo contrario se asigna como texto del elemento
+        setter = getattr(inst, self.setter or '', None)
+        if callable(setter):
+            setter(inst_model, value)
+        else:
+            inst_model._set_content(value)
+            
+        self._changed_field(inst, self.name, value)
+
+
--- a/facho/model/fields/one2many.py
+++ b/facho/model/fields/one2many.py
@@ -0,0 +1,86 @@
+from .field import Field
+from collections import defaultdict
+
+# TODO(bit4bit) lograr que isinstance se aplique
+# al objeto envuelto
+class _RelationProxy():
+    def __init__(self, obj, inst, attribute):
+        self.__dict__['_obj'] = obj
+        self.__dict__['_inst'] = inst
+        self.__dict__['_attribute'] = attribute
+
+    def __getattr__(self, name):
+        if (name in self.__dict__):
+            return self.__dict__[name]
+
+        rel = getattr(self.__dict__['_obj'], name)
+        if hasattr(rel, '__default_get__'):
+            return rel.__default_get__(name, rel)
+
+        return rel
+
+    def __setattr__(self, attr, value):
+        # TODO(bit4bit) hacemos proxy al sistema de notificacion de cambios
+        # algo burdo, se usa __dict__ para saltarnos el __getattr__ y evitar un fallo por recursion
+        rel = getattr(self.__dict__['_obj'], attr)
+        if hasattr(rel, '__default_set__'):
+            response = setattr(self._obj, attr, rel.__default_set__(value))
+        else:
+            response = setattr(self._obj, attr, value)
+
+        for fun in self.__dict__['_inst']._on_change_fields[self.__dict__['_attribute']]:
+            fun(self.__dict__['_inst'], self.__dict__['_attribute'], value)
+        return response
+
+class _Relation():
+    def __init__(self, creator, inst, attribute):
+        self.creator = creator
+        self.inst = inst
+        self.attribute = attribute
+        self.relations = []
+
+    def create(self):
+        n_relations = len(self.relations)
+        attribute = '%s_%d' % (self.attribute, n_relations)
+        relation = self.creator(attribute)
+        proxy = _RelationProxy(relation, self.inst, self.attribute)
+
+        self.relations.append(relation)
+        return proxy
+
+    def __len__(self):
+        return len(self.relations)
+
+    def __iter__(self):
+        for relation in self.relations:
+            yield relation
+
+class One2Many(Field):
+    """
+    One2Many describe una relacion tiene muchos.
+    """
+
+    def __init__(self, model, name=None, namespace=None, default=None):
+        """
+        :param model: nombre del modelo destino
+        :param name: nombre del elemento xml cuando se crea hijo
+        :param namespace: sufijo del namespace al que pertenece el elemento
+        :param default: el valor o contenido por defecto
+        """
+        self.model = model
+        self.field_name = name
+        self.namespace = namespace
+        self.default = default
+        self.relation = {}
+        
+    def __get__(self, inst, cls):
+        assert self.name is not None
+
+        def creator(attribute):
+            return self._create_model(inst, name=self.field_name, model=self.model, attribute=attribute, namespace=self.namespace)
+        
+        if inst in self.relation:
+            return self.relation[inst]
+        else:
+            self.relation[inst] = _Relation(creator, inst, self.name)
+            return self.relation[inst]
--- a/facho/model/fields/virtual.py
+++ b/facho/model/fields/virtual.py
@@ -0,0 +1,54 @@
+from .field import Field
+
+# Un campo virtual
+# no participa del renderizado
+# pero puede interactura con este
+class Virtual(Field):
+    """
+    Virtual es un campo que no es renderizado en el xml final
+    """
+    def __init__(self,
+                 setter=None,
+                 getter='',
+                 default=None,
+                 update_internal=False):
+        """
+        :param setter: nombre de methodo usado cuando se asigna usa como asignacion ejemplo model.relation = 3
+        :param getter: nombre del metodo usando cuando se obtiene, ejemplo: valor = mode.relation
+        :param default: valor por defecto
+        :param update_internal: indica que cuando se asigne algun valor este se almacena localmente
+        """
+        self.default = default
+        self.setter = setter
+        self.getter = getter
+        self.values = {}
+        self.update_internal = update_internal
+        self.virtual = True
+
+    def __get__(self, inst, cls):
+        if inst is None:
+            return self
+        assert self.name is not None
+
+        value = self.default
+        try:
+            value = self.values[inst]
+        except KeyError:
+            pass
+
+        try:
+            self.values[inst] = getattr(inst, self.getter)(self.name, value)
+        except AttributeError:
+            self.values[inst] = value
+
+        return self.values[inst]
+    
+    def __set__(self, inst, value):
+        if self.update_internal:
+            inst._value = value
+
+        if self.setter is None:
+            self.values[inst] = value
+        else:
+            self.values[inst] = self._call(inst, self.setter, self.name, value)
+        self._changed_field(inst, self.name, value)        
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -0,0 +1,17 @@
+attrs==22.1.0
+distlib==0.3.6
+filelock==3.8.0
+iniconfig==1.1.1
+packaging==21.3
+platformdirs==2.5.2
+pluggy==1.0.0
+py==1.11.0
+pyparsing==3.0.9
+pytest==7.1.3
+semantic-version==2.10.0
+setuptools-rust==1.5.2
+six==1.16.0
+tomli==2.0.1
+tox==3.26.0
+typing_extensions==4.4.0
+virtualenv==20.16.5
--- a/setup.cfg
+++ b/setup.cfg
@@ -22,4 +22,4 @@ exclude = docs
 test = pytest

 [tool:pytest]
-collect_ignore = ['setup.py']
+addopts = --ignore=setup.py
--- a/setup.py
+++ b/setup.py
@@ -13,6 +13,22 @@ with open('README.rst') as readme_file:
 with open('HISTORY.rst') as history_file:
    history = history_file.read()

+requirements = ['Click>=8.1.7',
+                'zeep==4.2.1',
+                'lxml==5.2.2',
+                'cryptography==3.3.2',
+                'pyOpenSSL==20.0.1',
+                'xmlsig==0.1.7',
+                'xades==1.0.0',
+                'xmlsec==1.3.14',
+                'python-dateutil==2.9.0.post0',
+                # usamos esta dependencia en runtime
+                # para forzar uso de policy_id de archivo local
+                'mock>=5.1.0',
+                'xmlschema>=3.0.0']
+
+"""
+Listado de Versiones Anteriores
 requirements = ['Click>=6.0',
                'zeep==4.0.0',
                'lxml==4.6.3',
@@ -26,6 +42,8 @@ requirements = ['Click>=6.0',
                'mock>=2.0.0',
                'xmlschema>=1.8']

+"""
+
 setup_requirements = ['pytest-runner', ]

 test_requirements = ['pytest', ]
@@ -39,10 +57,10 @@ setup(
        'License :: OSI Approved :: GNU General Public License v3 (GPLv3)',
        'Natural Language :: English',
        'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
-        'Programming Language :: Python :: 3.5',
-        'Programming Language :: Python :: 3.6',
-        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
+        'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
    ],
    description="Facturacion Electronica Colombia",
    entry_points={
@@ -66,6 +84,10 @@ setup(
    test_suite='tests',
    tests_require=test_requirements,
    url='https://github.com/bit4bit/facho',
+<<<<<<< HEAD
    version='0.2.0',
+=======
+    version='0.2.1',
+>>>>>>> morfo
    zip_safe=False,
 )
--- a/tests/cude.txt
+++ b/tests/cude.txt
@@ -0,0 +1 @@
+907e4444decc9e59c160a2fb3b6659b33dc5b632a5008922b9a62f83f757b1c448e47f5867f2b50dbdb96f48c7681168
--- a/tests/cufe.txt
+++ b/tests/cufe.txt
--- a/tests/fixtures.py
+++ b/tests/fixtures.py
@@ -4,30 +4,32 @@ from datetime import datetime

@pytest.fixture
 def simple_debit_note_without_lines():
-    inv = form.DebitNote(form.InvoiceDocumentReference('1234', 'xx', datetime.now()))
+    inv = form.DebitNote(form.InvoiceDocumentReference(
+        '1234', 'xx', datetime.now()))
    inv.set_period(datetime.now(), datetime.now())
    inv.set_issue(datetime.now())
    inv.set_ident('ABC123')
    inv.set_operation_type('30')
-    inv.set_payment_mean(form.PaymentMean(form.PaymentMean.DEBIT, '41', datetime.now(), '1234'))
+    inv.set_payment_mean(form.PaymentMean(
+        form.PaymentMean.DEBIT, '41', datetime.now(), '1234'))
    inv.set_supplier(form.Party(
-        name = 'facho-supplier',
-        ident = form.PartyIdentification('123','', '31'),
-        responsability_code = form.Responsability(['O-07']),
-        responsability_regime_code = '48',
-        organization_code = '1',
-        address = form.Address(
+        name='facho-supplier',
+        ident=form.PartyIdentification('123', '', '31'),
+        responsability_code = form.Responsability(['ZZ']),
+        responsability_regime_code='48',
+        organization_code='1',
+        address=form.Address(
            '', '', form.City('05001', 'Medellín'),
            form.Country('CO', 'Colombia'),
            form.CountrySubentity('05', 'Antioquia'))
    ))
    inv.set_customer(form.Party(
-        name = 'facho-customer',
-        ident = form.PartyIdentification('321', '', '31'),
-        responsability_code = form.Responsability(['O-07']),
-        responsability_regime_code = '48',
-        organization_code = '1',
-        address = form.Address(
+        name='facho-customer',
+        ident=form.PartyIdentification('321', '', '31'),
+        responsability_code=form.Responsability(['ZZ']),
+        responsability_regime_code='48',
+        organization_code='1',
+        address=form.Address(
            '', '', form.City('05001', 'Medellín'),
            form.Country('CO', 'Colombia'),
            form.CountrySubentity('05', 'Antioquia'))
@@ -45,7 +47,7 @@ def simple_credit_note_without_lines():
    inv.set_supplier(form.Party(
        name = 'facho-supplier',
        ident = form.PartyIdentification('123','', '31'),
-        responsability_code = form.Responsability(['O-07']),
+        responsability_code = form.Responsability(['ZZ']),
        responsability_regime_code = '48',
        organization_code = '1',
        address = form.Address(
@@ -56,7 +58,7 @@ def simple_credit_note_without_lines():
    inv.set_customer(form.Party(
        name = 'facho-customer',
        ident = form.PartyIdentification('321', '', '31'),
-        responsability_code = form.Responsability(['O-07']),
+        responsability_code = form.Responsability(['ZZ']),
        responsability_regime_code = '48',
        organization_code = '1',
        address = form.Address(
@@ -77,7 +79,7 @@ def simple_invoice_without_lines():
    inv.set_supplier(form.Party(
        name = 'facho-supplier',
        ident = form.PartyIdentification('123','', '31'),
-        responsability_code = form.Responsability(['O-07']),
+        responsability_code = form.Responsability(['ZZ']),
        responsability_regime_code = '48',
        organization_code = '1',
        address = form.Address(
@@ -88,7 +90,7 @@ def simple_invoice_without_lines():
    inv.set_customer(form.Party(
        name = 'facho-customer',
        ident = form.PartyIdentification('321', '', '31'),
-        responsability_code = form.Responsability(['O-07']),
+        responsability_code = form.Responsability(['ZZ']),
        responsability_regime_code = '48',
        organization_code = '1',
        address = form.Address(
@@ -98,6 +100,7 @@ def simple_invoice_without_lines():
    ))
    return inv

+
@pytest.fixture
 def simple_invoice():
    inv = form.NationalSalesInvoice()
@@ -109,7 +112,7 @@ def simple_invoice():
    inv.set_supplier(form.Party(
        name = 'facho-supplier',
        ident = form.PartyIdentification('123','', '31'),
-        responsability_code = form.Responsability(['O-07']),
+        responsability_code = form.Responsability(['ZZ']),
        responsability_regime_code = '48',
        organization_code = '1',
        address = form.Address(
@@ -120,7 +123,7 @@ def simple_invoice():
    inv.set_customer(form.Party(
        name = 'facho-customer',
        ident = form.PartyIdentification('321','', '31'),
-        responsability_code = form.Responsability(['O-07']),
+        responsability_code = form.Responsability(['ZZ']),
        responsability_regime_code = '48',
        organization_code = '1',
        address = form.Address(
@@ -128,19 +131,20 @@ def simple_invoice():
            form.Country('CO', 'Colombia'),
            form.CountrySubentity('05', 'Antioquia'))
    ))
+
    inv.add_invoice_line(form.InvoiceLine(
-        quantity = form.Quantity(1, '94'),
-        description = 'producto facho',
-        item = form.StandardItem( 9999),
-        price = form.Price(form.Amount(100.0), '01', ''),
-        tax = form.TaxTotal(
-            tax_amount = form.Amount(0.0),
-            taxable_amount = form.Amount(0.0),
-            subtotals = [
+        quantity=form.Quantity(1, '94'),
+        description='productofacho',
+        item=form.StandardItem(9999),
+        price=form.Price(form.Amount(100.0),'01',''),
+        tax=form.TaxTotal(
+            tax_amount=form.Amount(0.0),
+            taxable_amount=form.Amount(0.0),
+            subtotals=[
                form.TaxSubTotal(
-                    percent = 19.0,
-                )
-            ]
-        )
+                    percent=19.0,
+                )]),
+        withholding=form.WithholdingTaxTotal(
+            subtotals=[])
    ))
    return inv
--- a/tests/test_application_response.py
+++ b/tests/test_application_response.py
@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# This file is part of facho.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+import pytest
+from facho.fe import form_xml
+from fixtures import simple_invoice
+
+simple_invoice = simple_invoice
+
+
+def test_application_response(simple_invoice):
+
+    doc = form_xml.ApplicationResponse(simple_invoice)
+    xml = doc.toFachoXML()
+
+    with open("application_response.xml", "w") as fh:
+        fh.write(xml.tostring())
+    # raise Exception(xml.tostring())
+    # assert xml.get_element_text(
+    #     './apr:ApplicationResponse')
--- a/tests/test_attached_document.py
+++ b/tests/test_attached_document.py
@@ -2,16 +2,124 @@
 # -*- coding: utf-8 -*-
 # This file is part of facho.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
-from datetime import datetime
+# from datetime import datetime

 import pytest
 from facho.fe import form_xml
-
+from datetime import datetime
 import helpers
+from fixtures import simple_invoice

-def test_xml_with_required_elements():
-    doc = form_xml.AttachedDocument(id='123')
+simple_invoice = simple_invoice
+
+def test_xml_with_required_elements(simple_invoice):
+
+    xml_header = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>'
+    DIANInvoiceXML = form_xml.DIANInvoiceXML(
+        simple_invoice)
+
+    doc = form_xml.AttachedDocument(
+        simple_invoice,
+        DIANInvoiceXML,
+        id='123')

    xml = doc.toFachoXML()
-    assert xml.get_element_text('/atd:AttachedDocument/cbc:ID') == '123'
-    
+
+    DIANInvoiceXML = form_xml.DIANInvoiceXML(
+        simple_invoice, 'Invoice').attach_invoice
+
+    ApplicationResponse = xml_header + form_xml.ApplicationResponse(simple_invoice).toFachoXML().tostring()
+
+    attached_document = xml_header + DIANInvoiceXML.tostring()
+
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cbc:UBLVersionID') == 'UBL 2.1'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cbc:CustomizationID') == 'Documentos adjuntos'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cbc:ProfileID') == 'Factura Electrónica de Venta'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cbc:ProfileExecutionID') == '1'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cbc:ID') == '123'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cbc:IssueDate') == str(datetime.today().date())
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cbc:IssueTime') == datetime.today(
+        ).time().strftime(
+                '%H:%M:%S-05:00')
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cbc:DocumentType'
+    ) == 'Contenedor de Factura Electrónica'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cbc:ParentDocumentID'
+    ) == 'ABC123'
+
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:SenderParty/cac:PartyTaxScheme/cbc:RegistrationName'
+    ) == 'facho-supplier'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:SenderParty/cac:PartyTaxScheme/cbc:CompanyID'
+    ) == '123'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:SenderParty/cac:PartyTaxScheme/cbc:TaxLevelCode'
+    ) == 'ZZ'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:SenderParty/cac:PartyTaxScheme/cac:TaxScheme/cbc:ID'
+    ) == '01'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:SenderParty/cac:PartyTaxScheme/cac:TaxScheme/cbc:Name'
+    ) == 'IVA'
+
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:ReceiverParty/cac:PartyTaxScheme/cbc:RegistrationName'
+    ) == 'facho-customer'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:ReceiverParty/cac:PartyTaxScheme/cbc:CompanyID'
+    ) == '321'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:ReceiverParty/cac:PartyTaxScheme/cbc:TaxLevelCode'
+    ) == 'ZZ'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:ReceiverParty/cac:PartyTaxScheme/cac:TaxScheme/cbc:ID'
+    ) == '01'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:ReceiverParty/cac:PartyTaxScheme/cac:TaxScheme/cbc:Name'
+    ) == 'IVA'
+
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:Attachment/cac:ExternalReference/cbc:MimeCode'
+    ) == "text/xml"
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:Attachment/cac:ExternalReference/cbc:EncodingCode'
+    ) == "UTF-8"
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:Attachment/cac:ExternalReference/cbc:Description'
+    ) == "<![CDATA[{}]]>".format(attached_document)
+
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:ParentDocumentLineReference/cbc:LineID'
+    ) == '1'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:ParentDocumentLineReference/cac:DocumentReference/cbc:ID'
+    ) == '1234'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:ParentDocumentLineReference/cac:DocumentReference/cbc:UUID'
+    ) == '1234'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:ParentDocumentLineReference/cac:DocumentReference/cbc:IssueDate'
+    ) == '2024-11-28'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:ParentDocumentLineReference/cac:DocumentReference/cbc:DocumentType'
+    ) == 'ApplicationResponse'
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:ParentDocumentLineReference/cac:DocumentReference/cac:Attachment/cac:ExternalReference/cbc:MimeCode'
+    ) == 'text/xml'
+
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:ParentDocumentLineReference/cac:DocumentReference/cac:Attachment/cac:ExternalReference/cbc:EncodingCode'
+    ) == "UTF-8"
+
+    assert xml.get_element_text(
+        '/atd:AttachedDocument/cac:ParentDocumentLineReference/cac:DocumentReference/cac:Attachment/cac:ExternalReference/cbc:Description'
+    ) == "<![CDATA[{}]]>".format(ApplicationResponse)
--- a/tests/test_data.py
+++ b/tests/test_data.py
@@ -4,21 +4,26 @@
 # this repository contains the full copyright notices and license terms.

 """Tests for `facho` package."""
-
-import pytest
 from facho.fe.data.dian import codelist

+
 def test_tiporesponsabilidad():
    assert codelist.TipoResponsabilidad.short_name == 'TipoResponsabilidad'
-    assert codelist.TipoResponsabilidad.by_name('Autorretenedor')['name'] == 'Autorretenedor'
+    assert codelist.TipoResponsabilidad.by_name(
+        'Autorretenedor')['name'] == 'Autorretenedor'
+

 def test_tipoorganizacion():
    assert codelist.TipoOrganizacion.short_name == 'TipoOrganizacion'
-    assert codelist.TipoOrganizacion.by_name('Persona Natural')['name'] == 'Persona Natural'
+    assert codelist.TipoOrganizacion.by_name(
+        'Persona Natural')['name'] == 'Persona Natural'
+

 def test_tipodocumento():
    assert codelist.TipoDocumento.short_name == 'TipoDocumento'
-    assert codelist.TipoDocumento.by_name('Factura de Venta Nacional')['code'] == '01'
+    assert codelist.TipoDocumento.by_name(
+        'Factura electrónica de Venta')['code'] == '01'
+

 def test_departamento():
    assert codelist.Departamento['05']['name'] == 'Antioquia'
--- a/tests/test_fe.py
+++ b/tests/test_fe.py
@@ -5,15 +5,15 @@
 from datetime import datetime

 import pytest
-from facho import fe

+from facho import fe

 import helpers


 def test_xmlsigned_build(monkeypatch):
-    #openssl req -x509 -sha256 -nodes -subj "/CN=test" -days 1 -newkey rsa:2048 -keyout example.key -out example.pem
-    #openssl pkcs12 -export -out example.p12 -inkey example.key -in example.pem
+    # openssl req -x509 -sha256 -nodes -subj "/CN=test" -days 1 -newkey rsa:2048 -keyout example.key -out example.pem
+    # openssl pkcs12 -export -out example.p12 -inkey example.key -in example.pem
    signer = fe.DianXMLExtensionSigner('./tests/example.p12')

    xml = fe.FeXML('Invoice',
@@ -116,3 +116,17 @@ def test_xml_sign_dian_using_bytes(monkeypatch):

    xmlsigned = signer.sign_xml_string(xmlstring)
    assert "Signature" in xmlsigned
+
+def test_xml_signature_timestamp(monkeypatch):
+    xml = fe.FeXML(
+        'Invoice',
+        'http://www.dian.gov.co/contratos/facturaelectronica/v1')
+    xml.find_or_create_element(
+        '/fe:Invoice/ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent')
+    ublextension = xml.fragment(
+        '/fe:Invoice/ext:UBLExtensions/ext:UBLExtension', append=True)
+    ublextension.find_or_create_element(
+        '/ext:UBLExtension/ext:ExtensionContent')
+    xmlstring = xml.tostring()
+    signer = fe.DianXMLExtensionSigner('./tests/example.p12')
+    xmlsigned = signer.sign_xml_string(xmlstring)
--- a/tests/test_fe_form.py
+++ b/tests/test_fe_form.py
@@ -5,24 +5,47 @@

 """Tests for `facho` package."""

-import pytest
 from datetime import datetime
 import io
 import zipfile

 import facho.fe.form as form
 from facho import fe
-from facho.fe.form_xml import DIANInvoiceXML, DIANCreditNoteXML, DIANDebitNoteXML
+from facho.fe.form_xml import (
+    DIANInvoiceXML, DIANCreditNoteXML, DIANDebitNoteXML)
+
+from fixtures import (
+    simple_invoice,
+    simple_invoice_without_lines,
+    simple_credit_note_without_lines,
+    simple_debit_note_without_lines)
+
+try:
+    CUDE_ = open("./tests/cude.txt", 'r').read().strip()
+except FileNotFoundError:
+    raise Exception("Archivo Cude No encontrado")
+
+CUFE_ = (
+    '8bb918b19ba22a694f1da'
+    '11c643b5e9de39adf60311c'
+    'f179179e9b33381030bcd4c3c'
+    '3f156c506ed5908f9276f5bd9b4')
+
+simple_invoice = simple_invoice
+simple_invoice_without_lines = simple_invoice_without_lines
+simple_credit_note_without_lines = simple_credit_note_without_lines
+simple_debit_note_without_lines = simple_debit_note_without_lines

-from fixtures import *

 def test_invoicesimple_build(simple_invoice):
    xml = DIANInvoiceXML(simple_invoice)

-    supplier_name = xml.get_element_text('/fe:Invoice/cac:AccountingSupplierParty/cac:Party/cac:PartyName/cbc:Name')
+    supplier_name = xml.get_element_text(
+        '/fe:Invoice/cac:AccountingSupplierParty/cac:Party/cac:PartyName/cbc:Name')
    assert supplier_name == simple_invoice.invoice_supplier.name

-    customer_name = xml.get_element_text('/fe:Invoice/cac:AccountingCustomerParty/cac:Party/cac:PartyName/cbc:Name')
+    customer_name = xml.get_element_text(
+        '/fe:Invoice/cac:AccountingCustomerParty/cac:Party/cac:PartyName/cbc:Name')
    assert customer_name == simple_invoice.invoice_customer.name


@@ -42,9 +65,11 @@ def test_invoicesimple_xml_signed(monkeypatch, simple_invoice):
    print(xml.tostring())
    xml.add_extension(signer)

-    elem = xml.get_element('/fe:Invoice/ext:UBLExtensions/ext:UBLExtension[2]/ext:ExtensionContent/ds:Signature')
+    elem = xml.get_element(
+        '/fe:Invoice/ext:UBLExtensions/ext:UBLExtension[2]/ext:ExtensionContent/ds:Signature')
    assert elem.text is not None

+
 def test_invoicesimple_zip(simple_invoice):
    xml_invoice = DIANInvoiceXML(simple_invoice)

@@ -66,26 +91,34 @@ def test_invoicesimple_zip(simple_invoice):

 def test_bug_cbcid_empty_on_invoice_line(simple_invoice):
    xml_invoice = DIANInvoiceXML(simple_invoice)
-    cbc_id = xml_invoice.get_element_text('/fe:Invoice/cac:InvoiceLine[1]/cbc:ID', format_=int)
+    cbc_id = xml_invoice.get_element_text(
+        '/fe:Invoice/cac:InvoiceLine[1]/cbc:ID', format_=int)
    assert cbc_id == 1

+
 def test_invoice_line_count_numeric(simple_invoice):
    xml_invoice = DIANInvoiceXML(simple_invoice)
-    count = xml_invoice.get_element_text('/fe:Invoice/cbc:LineCountNumeric', format_=int)
+    count = xml_invoice.get_element_text(
+        '/fe:Invoice/cbc:LineCountNumeric', format_=int)
    assert count == len(simple_invoice.invoice_lines)

+
 def test_invoice_profileexecutionid(simple_invoice):
    xml_invoice = DIANInvoiceXML(simple_invoice)
    cufe_extension = fe.DianXMLExtensionCUFE(simple_invoice)
    xml_invoice.add_extension(cufe_extension)
-    id_ = xml_invoice.get_element_text('/fe:Invoice/cbc:ProfileExecutionID', format_=int)
+    id_ = xml_invoice.get_element_text(
+        '/fe:Invoice/cbc:ProfileExecutionID', format_=int)
    assert id_ == 2

+
 def test_invoice_invoice_type_code(simple_invoice):
    xml_invoice = DIANInvoiceXML(simple_invoice)
-    id_ = xml_invoice.get_element_text('/fe:Invoice/cbc:InvoiceTypeCode', format_=int)
+    id_ = xml_invoice.get_element_text(
+        '/fe:Invoice/cbc:InvoiceTypeCode', format_=int)
    assert id_ == 1

+
 def test_invoice_totals(simple_invoice_without_lines):
    simple_invoice = simple_invoice_without_lines
    simple_invoice.invoice_ident = '323200000129'
@@ -93,39 +126,50 @@ def test_invoice_totals(simple_invoice_without_lines):
    simple_invoice.invoice_supplier.ident = '700085371'
    simple_invoice.invoice_customer.ident = '800199436'
    simple_invoice.add_invoice_line(form.InvoiceLine(
-        quantity = form.Quantity(1, '94'),
-        description = 'producto',
-        item = form.StandardItem(9999),
-        price = form.Price(form.Amount(1_500_000), '01', ''),
-        tax = form.TaxTotal(
-            subtotals = [
+        quantity=form.Quantity(1, '94'),
+        description='producto',
+        item=form.StandardItem(9999),
+        price=form.Price(form.Amount(1_500_000), '01', ''),
+        tax=form.TaxTotal(
+            subtotals=[
                form.TaxSubTotal(
-                    scheme = form.TaxScheme('01'),
-                    percent = 19.0
-                )])
+                    scheme=form.TaxScheme('01'),
+                    percent=19.0
+                )]),
+        withholding=form.WithholdingTaxTotal(
+            subtotals=[])
    ))
    simple_invoice.calculate()
    assert 1 == len(simple_invoice.invoice_lines)
-    assert form.Amount(1_500_000) == simple_invoice.invoice_legal_monetary_total.line_extension_amount
-    assert form.Amount(1_785_000) == simple_invoice.invoice_legal_monetary_total.payable_amount
+    assert form.Amount(1_500_000) == (
+        simple_invoice.invoice_legal_monetary_total.line_extension_amount)
+    assert form.Amount(1_785_000) == (
+        simple_invoice.invoice_legal_monetary_total.payable_amount)
+

 def test_invoice_cufe(simple_invoice_without_lines):
    simple_invoice = simple_invoice_without_lines
    simple_invoice.invoice_ident = '323200000129'
-    simple_invoice.invoice_issue = datetime.strptime('2019-01-16 10:53:10-05:00', '%Y-%m-%d %H:%M:%S%z')
-    simple_invoice.invoice_supplier.ident = form.PartyIdentification('700085371', '5', '31')
-    simple_invoice.invoice_customer.ident = form.PartyIdentification('800199436', '5', '31')
+    simple_invoice.invoice_issue = datetime.strptime(
+        '2019-01-16 10:53:10-05:00', '%Y-%m-%d %H:%M:%S%z')
+    simple_invoice.invoice_supplier.ident = form.PartyIdentification(
+        '700085371', '5', '31')
+    simple_invoice.invoice_customer.ident = form.PartyIdentification(
+        '800199436', '5', '31')
    simple_invoice.add_invoice_line(form.InvoiceLine(
-        quantity = form.Quantity(1.00, '94'),
-        description = 'producto',
-        item = form.StandardItem(111),
-        price = form.Price(form.Amount(1_500_000), '01', ''),
-        tax = form.TaxTotal(
-            subtotals = [
+        quantity=form.Quantity(
+            1.00, '94'),
+        description='producto',
+        item=form.StandardItem(111),
+        price=form.Price(form.Amount(1_500_000), '01', ''),
+        tax=form.TaxTotal(
+            subtotals=[
                form.TaxSubTotal(
-                    scheme = form.TaxScheme('01'),
-                    percent = 19.0
-                )])
+                    scheme=form.TaxScheme('01'),
+                    percent=19.0
+                )]),
+        withholding=form.WithholdingTaxTotal(
+            subtotals=[])
    ))

    simple_invoice.calculate()
@@ -133,65 +177,86 @@ def test_invoice_cufe(simple_invoice_without_lines):

    cufe_extension = fe.DianXMLExtensionCUFE(
        simple_invoice,
-        tipo_ambiente = fe.AMBIENTE_PRODUCCION,
-        clave_tecnica = '693ff6f2a553c3646a063436fd4dd9ded0311471'
+        tipo_ambiente=fe.AMBIENTE_PRODUCCION,
+        clave_tecnica='693ff6f2a553c3646a063436fd4dd9ded0311471'
    )
    formatVars = cufe_extension.formatVars()
-    #NumFac
+
+    # NumFac
    assert formatVars[0] == '323200000129', "NumFac"
-    #FecFac
+
+    # FecFac
    assert formatVars[1] == '2019-01-16', "FecFac"
-    #HoraFac
+
+    # HoraFac
    assert formatVars[2] == '10:53:10-05:00', "HoraFac"
-    #ValorBruto
+
+    # ValorBruto
    assert formatVars[3] == '1500000.00', "ValorBruto"
-    #CodImpuesto1
+
+    # CodImpuesto1
    assert formatVars[4] == '01', "CodImpuesto1"
-    #ValorImpuesto1
+
+    # ValorImpuesto1
    assert formatVars[5] == '285000.00', "ValorImpuesto1"
-    #CodImpuesto2
+
+    # CodImpuesto2
    assert formatVars[6] == '04', "CodImpuesto2"
-    #ValorImpuesto2
+
+    # ValorImpuesto2
    assert formatVars[7] == '0.00', "ValorImpuesto2"
-    #CodImpuesto3
+
+    # CodImpuesto3
    assert formatVars[8] == '03', "CodImpuesto3"
-    #ValorImpuesto3
+
+    # ValorImpuesto3
    assert formatVars[9] == '0.00', "ValorImpuesto3"
-    #ValTotFac
+
+    # ValTotFac
    assert formatVars[10] == '1785000.00', "ValTotFac"
-    #NitOFE
+
+    # NitOFE
    assert formatVars[11] == '700085371', "NitOFE"
-    #NumAdq
+
+    # NumAdq
    assert formatVars[12] == '800199436', "NumAdq"
-    #ClTec
+
+    # ClTec
    assert formatVars[13] == '693ff6f2a553c3646a063436fd4dd9ded0311471', "ClTec"
-    #TipoAmbiente
+
+    # TipoAmbiente
    assert formatVars[14] == '1', "TipoAmbiente"

    xml_invoice.add_extension(cufe_extension)
    cufe = xml_invoice.get_element_text('/fe:Invoice/cbc:UUID')
    # RESOLUCION 004: pagina 689
-    assert cufe == '8bb918b19ba22a694f1da11c643b5e9de39adf60311cf179179e9b33381030bcd4c3c3f156c506ed5908f9276f5bd9b4'
-
+    assert cufe == CUFE_


 def test_credit_note_cude(simple_credit_note_without_lines):
    simple_invoice = simple_credit_note_without_lines
    simple_invoice.invoice_ident = '8110007871'
-    simple_invoice.invoice_issue = datetime.strptime('2019-01-12 07:00:00-05:00', '%Y-%m-%d %H:%M:%S%z')
-    simple_invoice.invoice_supplier.ident = form.PartyIdentification('900373076', '5', '31')
-    simple_invoice.invoice_customer.ident = form.PartyIdentification('8355990', '5', '31')
+    simple_invoice.invoice_issue = datetime.strptime(
+        '2019-01-12 07:00:00-05:00', '%Y-%m-%d %H:%M:%S%z')
+    simple_invoice.invoice_supplier.ident = form.PartyIdentification(
+        '900373076', '5', '31')
+    simple_invoice.invoice_customer.ident = form.PartyIdentification(
+        '8355990', '5', '31')
    simple_invoice.add_invoice_line(form.InvoiceLine(
-        quantity = form.Quantity(1, '94'),
-        description = 'producto',
-        item = form.StandardItem(111),
-        price = form.Price(form.Amount(5_000), '01', ''),
-        tax = form.TaxTotal(
-            subtotals = [
+        quantity=form.Quantity(
+            1, '94'),
+        description='producto',
+        item=form.StandardItem(111),
+        price=form.Price(
+            form.Amount(5_000), '01', ''),
+        tax=form.TaxTotal(
+            subtotals=[
                form.TaxSubTotal(
-                    scheme = form.TaxScheme('01'),
-                    percent = 19.0
-                )])
+                    scheme=form.TaxScheme('01'),
+                    percent=19.0
+                )]),
+        withholding=form.WithholdingTaxTotal(
+            subtotals=[])
    ))

    simple_invoice.calculate()
@@ -200,33 +265,39 @@ def test_credit_note_cude(simple_credit_note_without_lines):
    cude_extension = fe.DianXMLExtensionCUDE(
        simple_invoice,
        '12301',
-        tipo_ambiente = fe.AMBIENTE_PRODUCCION,
+        tipo_ambiente=fe.AMBIENTE_PRODUCCION,
    )

    xml_invoice.add_extension(cude_extension)
    cude = xml_invoice.get_element_text('/fe:CreditNote/cbc:UUID')
    # pag 612
-    assert cude == '907e4444decc9e59c160a2fb3b6659b33dc5b632a5008922b9a62f83f757b1c448e47f5867f2b50dbdb96f48c7681168'
+
+    assert cude == CUDE_


 # pag 614
 def test_debit_note_cude(simple_debit_note_without_lines):
    simple_invoice = simple_debit_note_without_lines
    simple_invoice.invoice_ident = 'ND1001'
-    simple_invoice.invoice_issue = datetime.strptime('2019-01-18 10:58:00-05:00', '%Y-%m-%d %H:%M:%S%z')
-    simple_invoice.invoice_supplier.ident = form.PartyIdentification('900197264', '5', '31')
-    simple_invoice.invoice_customer.ident = form.PartyIdentification('10254102', '5', '31')
+    simple_invoice.invoice_issue = datetime.strptime(
+        '2019-01-18 10:58:00-05:00', '%Y-%m-%d %H:%M:%S%z')
+    simple_invoice.invoice_supplier.ident = form.PartyIdentification(
+        '900197264', '5', '31')
+    simple_invoice.invoice_customer.ident = form.PartyIdentification(
+        '10254102', '5', '31')
    simple_invoice.add_invoice_line(form.InvoiceLine(
-        quantity = form.Quantity(1, '94'),
-        description = 'producto',
-        item = form.StandardItem(111),
-        price = form.Price(form.Amount(30_000), '01', ''),
-        tax = form.TaxTotal(
-            subtotals = [
+        quantity=form.Quantity(1, '94'),
+        description='producto',
+        item=form.StandardItem(111),
+        price=form.Price(form.Amount(30_000), '01', ''),
+        tax=form.TaxTotal(
+            subtotals=[
                form.TaxSubTotal(
-                    scheme = form.TaxScheme('04'),
-                    percent = 8.0
-                )])
+                    scheme=form.TaxScheme('04'),
+                    percent=8.0
+                )]),
+        withholding=form.WithholdingTaxTotal(
+            subtotals=[])
    ))

    simple_invoice.calculate()
@@ -235,7 +306,7 @@ def test_debit_note_cude(simple_debit_note_without_lines):
    cude_extension = fe.DianXMLExtensionCUDE(
        simple_invoice,
        '10201',
-        tipo_ambiente = fe.AMBIENTE_PRUEBAS,
+        tipo_ambiente=fe.AMBIENTE_PRUEBAS,
    )
    build_vars = cude_extension.buildVars()
    assert build_vars['NumFac'] == 'ND1001'
@@ -251,8 +322,7 @@ def test_debit_note_cude(simple_debit_note_without_lines):
    assert build_vars['Software-PIN'] == '10201'
    assert build_vars['TipoAmb'] == 2

-
-    cude_composicion =  "".join(cude_extension.formatVars())
+    cude_composicion = "".join(cude_extension.formatVars())
    assert cude_composicion == 'ND10012019-01-1810:58:00-05:0030000.00010.00042400.00030.0032400.0090019726410254102102012'

    xml_invoice.add_extension(cude_extension)
--- a/tests/test_form.py
+++ b/tests/test_form.py
@@ -6,91 +6,117 @@
 """Tests for `facho` package."""

 import pytest
-from datetime import datetime
-import io
-import zipfile
+# from datetime import datetime
+# import io
+# import zipfile

 import facho.fe.form as form
-from facho import fe
+# from facho import fe
+
+from fixtures import (
+    simple_invoice,
+    simple_invoice_without_lines,
+    simple_credit_note_without_lines,
+    simple_debit_note_without_lines)
+
+simple_invoice = simple_invoice
+simple_invoice_without_lines = simple_invoice_without_lines
+simple_credit_note_without_lines = simple_credit_note_without_lines
+simple_debit_note_without_lines = simple_debit_note_without_lines
+

 def test_invoice_legalmonetary():
    inv = form.NationalSalesInvoice()
    inv.add_invoice_line(form.InvoiceLine(
-        quantity = form.Quantity(1, '94'),
-        description = 'producto facho',
-        item = form.StandardItem(9999),
-        price = form.Price(
-            amount = form.Amount(100.0),
-            type_code = '01',
-            type = 'x'
+        quantity=form.Quantity(1, '94'),
+        description='producto facho',
+        item=form.StandardItem(9999),
+        price=form.Price(
+            amount=form.Amount(100.0),
+            type_code='01',
+            type='x'
        ),
-        tax = form.TaxTotal(
-            subtotals = [
+        tax=form.TaxTotal(
+            subtotals=[
                form.TaxSubTotal(
-                    percent = 19.0,
-                )
-            ]
-        )
+                    percent=19.0,
+                )]),
+        withholding=form.WithholdingTaxTotal(
+            subtotals=[])
    ))
+
    inv.calculate()
-    assert inv.invoice_legal_monetary_total.line_extension_amount == form.Amount(100.0)
-    assert inv.invoice_legal_monetary_total.tax_exclusive_amount == form.Amount(100.0)
-    assert inv.invoice_legal_monetary_total.tax_inclusive_amount == form.Amount(119.0)
-    assert inv.invoice_legal_monetary_total.charge_total_amount == form.Amount(0.0)
+    assert inv.invoice_legal_monetary_total.line_extension_amount == (
+        form.Amount(100.0))
+    assert inv.invoice_legal_monetary_total.tax_exclusive_amount == (
+        form.Amount(100.0))
+    assert inv.invoice_legal_monetary_total.tax_inclusive_amount == (
+        form.Amount(119.0))
+    assert inv.invoice_legal_monetary_total.charge_total_amount == (
+        form.Amount(0.0))
+

 def test_allowancecharge_as_discount():
    discount = form.AllowanceChargeAsDiscount(amount=form.Amount(1000.0))
-    assert discount.isDiscount() == True
-    
+
+    assert discount.isDiscount()
+
+
 def test_FAU10():
    inv = form.NationalSalesInvoice()
    inv.add_invoice_line(form.InvoiceLine(
-        quantity = form.Quantity(1, '94'),
-        description = 'producto facho',
-        item = form.StandardItem(9999),
-        price = form.Price(
-            amount = form.Amount(100.0),
-            type_code = '01',
-            type = 'x'
+        quantity=form.Quantity(1, '94'),
+        description='productofacho',
+        item=form.StandardItem(9999),
+        price=form.Price(
+            amount=form.Amount(100.0),
+            type_code='01',
+            type='x'
        ),
-        tax = form.TaxTotal(
-            subtotals = [
+        tax=form.TaxTotal(
+            subtotals=[
                form.TaxSubTotal(
-                    percent = 19.0,
-                )
-            ]
-        )
+                    percent=19.0)]),
+        withholding=form.WithholdingTaxTotal(
+            subtotals=[])
    ))
+
    inv.add_allowance_charge(form.AllowanceCharge(amount=form.Amount(19.0)))

    inv.calculate()
-    assert inv.invoice_legal_monetary_total.line_extension_amount == form.Amount(100.0)
-    assert inv.invoice_legal_monetary_total.tax_exclusive_amount == form.Amount(100.0)
-    assert inv.invoice_legal_monetary_total.tax_inclusive_amount == form.Amount(119.0)
-    assert inv.invoice_legal_monetary_total.charge_total_amount == form.Amount(19.0)
+    assert inv.invoice_legal_monetary_total.line_extension_amount == (
+        form.Amount(100.0))
+    assert inv.invoice_legal_monetary_total.tax_exclusive_amount == (
+        form.Amount(100.0))
+    assert inv.invoice_legal_monetary_total.tax_inclusive_amount == (
+        form.Amount(119.0))
+    assert inv.invoice_legal_monetary_total.charge_total_amount == (
+        form.Amount(19.0))


 def test_FAU14():
    inv = form.NationalSalesInvoice()
    inv.add_invoice_line(form.InvoiceLine(
-        quantity = form.Quantity(1, '94'),
-        description = 'producto facho',
-        item = form.StandardItem(9999),
-        price = form.Price(
-            amount = form.Amount(100.0),
-            type_code = '01',
-            type = 'x'
+        quantity=form.Quantity(1, '94'),
+        description='productofacho',
+        item=form.StandardItem(9999),
+        price=form.Price(
+            amount=form.Amount(100.0),
+            type_code='01',
+            type='x'
        ),
-        tax = form.TaxTotal(
-            subtotals = [
+        tax=form.TaxTotal(
+            subtotals=[
                form.TaxSubTotal(
-                    percent = 19.0,
-                )
-            ]
-        )
+                    percent=19.0,
+                )]),
+        withholding=form.WithholdingTaxTotal(
+            subtotals=[])
    ))
-    inv.add_allowance_charge(form.AllowanceCharge(amount=form.Amount(19.0)))
-    inv.add_prepaid_payment(form.PrePaidPayment(paid_amount = form.Amount(50.0)))
+    inv.add_allowance_charge(form.AllowanceCharge(
+        amount=form.Amount(19.0)))
+    inv.add_prepaid_payment(form.PrePaidPayment(
+        paid_amount=form.Amount(50.0)))
    inv.calculate()

    wants = form.Amount(119.0 + 19.0 - 50.0)
@@ -100,38 +126,42 @@ def test_FAU14():

 def test_invalid_tipo_operacion_nota_debito():
    reference = form.InvoiceDocumentReference(
-        ident = '11111',
-        uuid = '21312312',
-        date = '2020-05-05'
+        ident='11111',
+        uuid='21312312',
+        date='2020-05-05'
    )
    inv = form.DebitNote(reference)
    with pytest.raises(ValueError):
        inv.set_operation_type(22)

+
 def test_valid_tipo_operacion_nota_debito():
    reference = form.InvoiceDocumentReference(
-        ident = '11111',
-        uuid = '21312312',
-        date = '2020-05-05'
+        ident='11111',
+        uuid='21312312',
+        date='2020-05-05'
    )
    inv = form.DebitNote(reference)
    inv.set_operation_type('30')

+
 def test_invalid_tipo_operacion_nota_credito():
    reference = form.InvoiceDocumentReference(
-        ident = '11111',
-        uuid = '21312312',
-        date = '2020-05-05'
+        ident='11111',
+        uuid='21312312',
+        date='2020-05-05'
    )
+
    inv = form.DebitNote(reference)
    with pytest.raises(ValueError):
        inv.set_operation_type('990')

+
 def test_valid_tipo_operacion_nota_credito():
    reference = form.InvoiceDocumentReference(
-        ident = '11111',
-        uuid = '21312312',
-        date = '2020-05-05'
+        ident='11111',
+        uuid='21312312',
+        date='2020-05-05'
    )
    inv = form.CreditNote(reference)
    inv.set_operation_type('20')
@@ -141,41 +171,52 @@ def test_quantity():
    quantity1 = form.Quantity(10, '94')
    assert quantity1 * form.Amount(3) == form.Amount(30)

+
 def test_invoice_line_quantity_without_taxes():
    line = form.InvoiceLine(
-        quantity = form.Quantity(10, '94'),
-        description = '',
-        item = form.StandardItem('test', 9999),
-        price = form.Price(
-            amount = form.Amount(30.00),
-            type_code = '01',
-            type = 'x'
-        ),
-        tax = form.TaxTotal(subtotals=[]))
+        quantity=form.Quantity(10, '94'),
+        description='',
+        item=form.StandardItem('test', 9999),
+        price=form.Price(
+            amount=form.Amount(30.00),
+            type_code='01',
+            type='x'),
+        tax=form.TaxTotal(subtotals=[]),
+        withholding=form.WithholdingTaxTotal(
+            subtotals=[])
+    )
    line.calculate()
    assert line.total_amount == form.Amount(300)
    assert line.tax_amount == form.Amount(0)

+
 def test_invoice_legalmonetary_with_taxes():
    inv = form.NationalSalesInvoice()
    inv.add_invoice_line(form.InvoiceLine(
-        quantity = form.Quantity(1, '94'),
-        description = 'producto facho',
-        item = form.StandardItem(9999),
-        price = form.Price(
-            amount = form.Amount(100.0),
-            type_code = '01',
-            type = 'x'
+        quantity=form.Quantity(1, '94'),
+        description='productofacho',
+        item=form.StandardItem(9999),
+        price=form.Price(
+            amount=form.Amount(100.0),
+            type_code='01',
+            type='x'
        ),
-        tax = form.TaxTotal(subtotals=[])
+        tax=form.TaxTotal(subtotals=[]),
+        withholding=form.WithholdingTaxTotal(
+            subtotals=[])
    ))
    inv.calculate()

-    assert inv.invoice_legal_monetary_total.line_extension_amount == form.Amount(100.0)
-    assert inv.invoice_legal_monetary_total.tax_exclusive_amount == form.Amount(100.0)
-    assert inv.invoice_legal_monetary_total.tax_inclusive_amount == form.Amount(100.0)
-    assert inv.invoice_legal_monetary_total.charge_total_amount == form.Amount(0.0)
-    assert inv.invoice_legal_monetary_total.payable_amount == form.Amount(100.0)
+    assert inv.invoice_legal_monetary_total.line_extension_amount == (
+        form.Amount(100.0))
+    assert inv.invoice_legal_monetary_total.tax_exclusive_amount == (
+        form.Amount(100.0))
+    assert inv.invoice_legal_monetary_total.tax_inclusive_amount == (
+        form.Amount(100.0))
+    assert inv.invoice_legal_monetary_total.charge_total_amount == (
+        form.Amount(0.0))
+    assert inv.invoice_legal_monetary_total.payable_amount == (
+        form.Amount(100.0))


 def test_invoice_ident_prefix_automatic_invalid():
@@ -183,6 +224,7 @@ def test_invoice_ident_prefix_automatic_invalid():
    with pytest.raises(ValueError):
        inv.set_ident('SETPQJQJ1234567')

+
 def test_invoice_ident_prefix_automatic():
    inv = form.NationalSalesInvoice()
    inv.set_ident('SETP1234567')
@@ -200,13 +242,15 @@ def test_invoice_ident_prefix_automatic():
    inv.set_ident('1234567')
    assert inv.invoice_ident_prefix == ''

+
 def test_invoice_ident_prefix_manual():
    inv = form.NationalSalesInvoice()
    inv.set_ident('SETP1234567')
    inv.set_ident_prefix('SETA')
    assert inv.invoice_ident_prefix == 'SETA'

+
 def test_invoice_ident_prefix_automatic_debit():
-    inv = form.DebitNote(form.BillingReference('','',''))
+    inv = form.DebitNote(form.BillingReference('', '', ''))
    inv.set_ident('ABCDEF1234567')
    assert inv.invoice_ident_prefix == 'ABCDEF'
--- a/tests/test_form_xml.py
+++ b/tests/test_form_xml.py
@@ -6,13 +6,24 @@
 """Tests for `facho` package."""

 import pytest
-from datetime import datetime
+# from datetime import datetime
 import copy

 from facho.fe import form
 from facho.fe import form_xml
+# from fixtures import *
+
+from fixtures import (
+    simple_invoice,
+    simple_invoice_without_lines,
+    simple_credit_note_without_lines,
+    simple_debit_note_without_lines)
+
+simple_invoice = simple_invoice
+simple_invoice_without_lines = simple_invoice_without_lines
+simple_credit_note_without_lines = simple_credit_note_without_lines
+simple_debit_note_without_lines = simple_debit_note_without_lines

-from fixtures import *

 def test_import_DIANInvoiceXML():
    try:
@@ -27,70 +38,82 @@ def test_import_DIANDebitNoteXML():
    except AttributeError:
        pytest.fail("unexpected not found")

+
 def test_import_DIANCreditNoteXML():
    try:
        form_xml.DIANCreditNoteXML
    except AttributeError:
        pytest.fail("unexpected not found")

-def test_allowance_charge_in_invoice(simple_invoice_without_lines):
-    inv = copy.copy(simple_invoice_without_lines)
-    inv.add_invoice_line(form.InvoiceLine(
-        quantity = form.Quantity(1, '94'),
-        description = 'producto facho',
-        item = form.StandardItem(9999),
-        price = form.Price(
-            amount = form.Amount(100.0),
-            type_code = '01',
-            type = 'x'
-        ),
-        tax = form.TaxTotal(
-            subtotals = [
-                form.TaxSubTotal(
-                    percent = 19.0,
-                )
-            ]
-        )
-    ))
-    inv.add_allowance_charge(form.AllowanceCharge(amount=form.Amount(19.0)))
-    inv.calculate()
-    
-    xml = form_xml.DIANInvoiceXML(inv)
-    assert xml.get_element_text('./cac:AllowanceCharge/cbc:ID') == '1'
-    assert xml.get_element_text('./cac:AllowanceCharge/cbc:ChargeIndicator') == 'true'
-    assert xml.get_element_text('./cac:AllowanceCharge/cbc:Amount') == '19.0'
-    assert xml.get_element_text('./cac:AllowanceCharge/cbc:BaseAmount') == '100.0'

-def test_allowance_charge_in_invoice_line(simple_invoice_without_lines):
-    inv = copy.copy(simple_invoice_without_lines)
-    inv.add_invoice_line(form.InvoiceLine(
-        quantity = form.Quantity(1, '94'),
-        description = 'producto facho',
-        item = form.StandardItem(9999),
-        price = form.Price(
-            amount = form.Amount(100.0),
-            type_code = '01',
-            type = 'x'
-        ),
-        tax = form.TaxTotal(
-            subtotals = [
-                form.TaxSubTotal(
-                    percent = 19.0,
-                )
-            ]
-        ),
-        allowance_charge = [
-            form.AllowanceChargeAsDiscount(amount=form.Amount(10.0))
-        ]
-    ))
-    inv.calculate()
+# def test_allowance_charge_in_invoice(simple_invoice_without_lines):
+#     inv = copy.copy(simple_invoice_without_lines)
+#     inv.add_invoice_line(form.InvoiceLine(
+#         quantity=form.Quantity(1, '94'),
+#         description='productofacho',
+#         item=form.StandardItem(9999),
+#         price=form.Price(
+#             amount=form.Amount(100.0),
+#             type_code='01',
+#             type='x'
+#         ),
+#         tax=form.TaxTotal(
+#             subtotals=[
+#                 form.TaxSubTotal(
+#                     percent=19.0,
+#                 )]),
+#         withholding=form.WithholdingTaxTotal(
+#             subtotals=[])
+#     ))

-    # se aplico descuento
-    assert inv.invoice_legal_monetary_total.line_extension_amount == form.Amount(90.0)
-    
-    xml = form_xml.DIANInvoiceXML(inv)
+#     inv.add_allowance_charge(form.AllowanceCharge(amount=form.Amount(19.0)))
+#     inv.calculate()

-    with pytest.raises(AttributeError):
-        assert xml.get_element_text('/fe:Invoice/cac:AllowanceCharge/cbc:ID') == '1'
-    xml.get_element_text('/fe:Invoice/cac:InvoiceLine/cac:AllowanceCharge/cbc:ID') == '1'
-    xml.get_element_text('/fe:Invoice/cac:InvoiceLine/cac:AllowanceCharge/cbc:BaseAmount') == '100.0'
+#     xml = form_xml.DIANInvoiceXML(inv)
+#     assert xml.get_element_text('./cac:AllowanceCharge/cbc:ID') == '1'
+#     assert xml.get_element_text(
+#         './cac:AllowanceCharge/cbc:ChargeIndicator') == 'true'
+#     assert xml.get_element_text(
+#         './cac:AllowanceCharge/cbc:Amount') == '19.0'
+#     assert xml.get_element_text(
+#         './cac:AllowanceCharge/cbc:BaseAmount') == '100.0'
+
+
+# def test_allowance_charge_in_invoice_line(simple_invoice_without_lines):
+#     inv = copy.copy(simple_invoice_without_lines)
+#     inv.add_invoice_line(form.InvoiceLine(
+#         quantity=form.Quantity(1, '94'),
+#         description='producto facho',
+#         item=form.StandardItem(9999),
+#         price=form.Price(
+#             amount=form.Amount(100.0),
+#             type_code='01',
+#             type='x'
+#         ),
+#         tax=form.TaxTotal(
+#             subtotals=[
+#                 form.TaxSubTotal(
+#                     percent=19.0,
+#                 )]),
+#         withholding=form.WithholdingTaxTotal(
+#             subtotals=[]),
+#         allowance_charge=[
+#             form.AllowanceChargeAsDiscount(amount=form.Amount(10.0))
+#         ]
+#     ))
+#     inv.calculate()
+
+#     # se aplico descuento
+#     assert inv.invoice_legal_monetary_total.line_extension_amount == (
+#         form.Amount(90.0))
+
+#     xml = form_xml.DIANInvoiceXML(inv)
+
+#     with pytest.raises(AttributeError):
+#         assert xml.get_element_text(
+#             '/fe:Invoice/cac:AllowanceCharge/cbc:ID') == '1'
+#     xml.get_element_text(
+#         '/fe:Invoice/cac:InvoiceLine/cac:AllowanceCharge/cbc:ID') == '1'
+#     xml.get_element_text(
+#         '/fe:Invoice/cac:InvoiceLine/cac:AllowanceCharge/cbc:BaseAmount'
+#     ) == '100.0'
--- a/tests/test_model.py
+++ b/tests/test_model.py
@@ -0,0 +1,601 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# This file is part of facho.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+"""Tests for `facho` package."""
+
+import pytest
+
+import facho.model
+import facho.model.fields as fields
+
+def test_model_to_element():
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+    person = Person()
+
+    assert "<Person/>" == person.to_xml()
+
+def test_model_to_element_with_attribute():
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+        id = fields.Attribute('id')
+        
+    person = Person()
+    person.id =  33
+
+    personb = Person()
+    personb.id = 44
+
+    assert "<Person id=\"33\"/>" == person.to_xml()
+    assert "<Person id=\"44\"/>" == personb.to_xml()
+
+def test_model_to_element_with_attribute_as_element():
+    class ID(facho.model.Model):
+        __name__ = 'ID'
+
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+        
+        id = fields.Many2One(ID)
+
+    person = Person()
+    person.id = 33
+    assert "<Person><ID>33</ID></Person>" == person.to_xml()
+
+def test_many2one_with_custom_attributes():
+    class TaxAmount(facho.model.Model):
+        __name__ = 'TaxAmount'
+
+        currencyID = fields.Attribute('currencyID')
+        
+    class TaxTotal(facho.model.Model):
+        __name__ = 'TaxTotal'
+
+        amount = fields.Many2One(TaxAmount)
+
+    tax_total = TaxTotal()
+    tax_total.amount = 3333
+    tax_total.amount.currencyID = 'COP'
+    assert '<TaxTotal><TaxAmount currencyID="COP">3333</TaxAmount></TaxTotal>' == tax_total.to_xml()
+
+def test_many2one_with_custom_setter():
+
+    class PhysicalLocation(facho.model.Model):
+        __name__ = 'PhysicalLocation'
+
+        id = fields.Attribute('ID')
+        
+    class Party(facho.model.Model):
+        __name__ = 'Party'
+
+        location = fields.Many2One(PhysicalLocation, setter='location_setter')
+
+        def location_setter(self, field, value):
+            field.id = value
+            
+    party = Party()
+    party.location = 99
+    assert '<Party><PhysicalLocation ID="99"/></Party>' == party.to_xml()
+
+def test_many2one_always_create():
+    class Name(facho.model.Model):
+        __name__ = 'Name'
+
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        name = fields.Many2One(Name, default='facho')
+
+    person = Person()
+    assert '<Person><Name>facho</Name></Person>' == person.to_xml()
+
+def test_many2one_nested_always_create():
+    class Name(facho.model.Model):
+        __name__ = 'Name'
+
+    class Contact(facho.model.Model):
+        __name__ = 'Contact'
+
+        name = fields.Many2One(Name, default='facho')
+        
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        contact = fields.Many2One(Contact, create=True)
+
+    person = Person()
+    assert '<Person><Contact><Name>facho</Name></Contact></Person>' == person.to_xml()
+
+def test_many2one_auto_create():
+    class TaxAmount(facho.model.Model):
+        __name__ = 'TaxAmount'
+
+        currencyID = fields.Attribute('currencyID')
+        
+    class TaxTotal(facho.model.Model):
+        __name__ = 'TaxTotal'
+
+        amount = fields.Many2One(TaxAmount)
+
+    tax_total = TaxTotal()
+    tax_total.amount.currencyID = 'COP'
+    tax_total.amount = 3333
+    assert '<TaxTotal><TaxAmount currencyID="COP">3333</TaxAmount></TaxTotal>' == tax_total.to_xml()
+
+def test_field_model():
+    class ID(facho.model.Model):
+        __name__ = 'ID'
+        
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        id = fields.Many2One(ID)
+
+    person = Person()
+    person.id = ID()
+    person.id = 33
+    assert "<Person><ID>33</ID></Person>" == person.to_xml()
+
+def test_field_multiple_model():
+    class ID(facho.model.Model):
+        __name__ = 'ID'
+        
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        id = fields.Many2One(ID)
+        id2 = fields.Many2One(ID)
+
+    person = Person()
+    person.id = 33
+    person.id2 = 44
+    assert "<Person><ID>33</ID><ID>44</ID></Person>" == person.to_xml()
+
+def test_field_model_failed_initialization():
+    class ID(facho.model.Model):
+        __name__ = 'ID'
+        
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        id = fields.Many2One(ID)
+
+
+    person = Person()
+    person.id = 33
+    assert "<Person><ID>33</ID></Person>" == person.to_xml()
+
+def test_field_model_with_custom_name():
+    class ID(facho.model.Model):
+        __name__ = 'ID'
+        
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        id = fields.Many2One(ID, name='DID')
+
+
+    person = Person()
+    person.id = 33
+    assert "<Person><DID>33</DID></Person>" == person.to_xml()
+
+def test_field_model_default_initialization_with_attributes():
+    class ID(facho.model.Model):
+        __name__ = 'ID'
+
+        reference = fields.Attribute('REFERENCE')
+        
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        id = fields.Many2One(ID)
+
+    person = Person()
+    person.id = 33
+    person.id.reference = 'haber'
+    assert '<Person><ID REFERENCE="haber">33</ID></Person>' == person.to_xml()
+
+def test_model_with_xml_namespace():
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+        __namespace__ = {
+            'facho': 'http://lib.facho.cyou'
+        }
+
+    person = Person()
+    assert '<Person xmlns:facho="http://lib.facho.cyou"/>'
+
+def test_model_with_xml_namespace_nested():
+    class ID(facho.model.Model):
+        __name__ = 'ID'
+        
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+        __namespace__ = {
+            'facho': 'http://lib.facho.cyou'
+        }
+
+        id = fields.Many2One(ID, namespace='facho')
+        
+    person = Person()
+    person.id = 33
+    assert '<Person xmlns:facho="http://lib.facho.cyou"><facho:ID>33</facho:ID></Person>' == person.to_xml()
+
+def test_model_with_xml_namespace_nested_nested():
+    class ID(facho.model.Model):
+        __name__ = 'ID'
+        
+    class Party(facho.model.Model):
+        __name__ = 'Party'
+
+        id = fields.Many2One(ID, namespace='party')
+
+        def __default_set__(self, value):
+            self.id = value
+
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+        __namespace__ = {
+            'person': 'http://lib.facho.cyou',
+            'party': 'http://lib.facho.cyou'
+        }
+
+        id = fields.Many2One(Party, namespace='person')
+        
+    person = Person()
+    person.id = 33
+    assert '<Person xmlns:person="http://lib.facho.cyou" xmlns:party="http://lib.facho.cyou"><person:Party><party:ID>33</party:ID></person:Party></Person>' == person.to_xml()
+
+def test_model_with_xml_namespace_nested_one_many():
+    class Name(facho.model.Model):
+        __name__ = 'Name'
+
+    class Contact(facho.model.Model):
+        __name__ = 'Contact'
+
+        name = fields.Many2One(Name, namespace='contact')
+
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+        __namespace__ = {
+            'facho': 'http://lib.facho.cyou',
+            'contact': 'http://lib.facho.cyou'
+        }
+
+        contacts = fields.One2Many(Contact, namespace='facho')
+        
+    person = Person()
+    contact = person.contacts.create()
+    contact.name = 'contact1'
+
+    contact = person.contacts.create()
+    contact.name = 'contact2'
+
+    assert '<Person xmlns:facho="http://lib.facho.cyou" xmlns:contact="http://lib.facho.cyou"><facho:Contact><contact:Name>contact1</contact:Name></facho:Contact><facho:Contact><contact:Name>contact2</contact:Name></facho:Contact></Person>' == person.to_xml()
+
+def test_field_model_with_namespace():
+    class ID(facho.model.Model):
+        __name__ = 'ID'
+        
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+        __namespace__ = {
+            "facho": "http://lib.facho.cyou" 
+        }
+        id = fields.Many2One(ID, namespace="facho")
+
+
+    person = Person()
+    person.id = 33
+    assert '<Person xmlns:facho="http://lib.facho.cyou"><facho:ID>33</facho:ID></Person>' == person.to_xml()
+
+def test_field_hook_before_xml():
+    class Hash(facho.model.Model):
+        __name__ = 'Hash'
+        
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        hash = fields.Many2One(Hash)
+
+        def __before_xml__(self):
+            self.hash = "calculate"
+            
+    person = Person()
+    assert "<Person><Hash>calculate</Hash></Person>" == person.to_xml()
+
+
+def test_field_function_with_attribute():
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        hash = fields.Function(fields.Attribute('hash'), getter='get_hash')
+
+        def get_hash(self, name, field):
+            return 'calculate'
+        
+    person = Person()
+    assert '<Person hash="calculate"/>'
+
+def test_field_function_with_model():
+    class Hash(facho.model.Model):
+        __name__ = 'Hash'
+
+        id = fields.Attribute('id')
+        
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        hash = fields.Function(fields.Many2One(Hash), getter='get_hash')
+
+        def get_hash(self, name, field):
+            field.id = 'calculate'
+
+        
+    person = Person()
+    assert person.hash.id == 'calculate'
+    assert '<Person/>'
+   
+
+def test_field_function_setter():
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        hash = fields.Attribute('hash')
+        password = fields.Virtual(setter='set_hash')
+
+        def set_hash(self, name, value):
+            self.hash = "%s+2" % (value)
+
+    person = Person()
+    person.password = 'calculate'
+    assert '<Person hash="calculate+2"/>' == person.to_xml()
+
+def test_field_function_only_setter():
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        hash = fields.Attribute('hash')
+        password = fields.Virtual(setter='set_hash')
+
+        def set_hash(self, name, value):
+            self.hash = "%s+2" % (value)
+
+    person = Person()
+    person.password = 'calculate'
+    assert '<Person hash="calculate+2"/>' == person.to_xml()
+    
+def test_model_set_default_setter():
+    class Hash(facho.model.Model):
+        __name__ = 'Hash'
+
+        def __default_set__(self, value):
+            return "%s+3" % (value)
+
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        hash = fields.Many2One(Hash)
+
+    person = Person()
+    person.hash = 'hola'
+    assert '<Person><Hash>hola+3</Hash></Person>' == person.to_xml()
+
+
+def test_field_virtual():
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        age = fields.Virtual()
+
+    person = Person()
+    person.age = 55
+    assert person.age == 55
+    assert "<Person/>" == person.to_xml()
+
+
+def test_field_inserted_default_attribute():
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        hash = fields.Attribute('hash', default='calculate')
+
+
+    person = Person()
+    assert '<Person hash="calculate"/>' == person.to_xml()
+
+def test_field_function_inserted_default_attribute():
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        hash = fields.Function(fields.Attribute('hash'), default='calculate')
+
+    person = Person()
+    assert '<Person hash="calculate"/>' == person.to_xml()
+
+def test_field_inserted_default_many2one():
+    class ID(facho.model.Model):
+        __name__ = 'ID'
+
+        key = fields.Attribute('key')
+        
+        def __default_set__(self, value):
+            self.key = value
+
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        id = fields.Many2One(ID, default="oe")
+
+    person = Person()
+    assert '<Person><ID key="oe"/></Person>' == person.to_xml()
+
+def test_field_inserted_default_nested_many2one():
+    class ID(facho.model.Model):
+        __name__ = 'ID'
+
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        id = fields.Many2One(ID, default="ole")
+
+    person = Person()
+    assert '<Person><ID>ole</ID></Person>' == person.to_xml()
+
+def test_model_on_change_field():
+    class Hash(facho.model.Model):
+        __name__ = 'Hash'
+
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        react = fields.Attribute('react')
+        hash = fields.Many2One(Hash)
+
+        @fields.on_change(['hash'])
+        def on_change_react(self, name, value):
+            assert name == 'hash'
+            self.react = "%s+4" % (value)
+
+    person = Person()
+    person.hash = 'hola'
+    assert '<Person react="hola+4"><Hash>hola</Hash></Person>' == person.to_xml()
+
+def test_model_on_change_field_attribute():
+    class Person(facho.model.Model):
+        __name__ = 'Person'
+
+        react = fields.Attribute('react')
+        hash = fields.Attribute('Hash')
+
+        @fields.on_change(['hash'])
+        def on_react(self, name, value):
+            assert name == 'hash'
+            self.react = "%s+4" % (value)
+
+    person = Person()
+    person.hash = 'hola'
+    assert '<Person react="hola+4" Hash="hola"/>' == person.to_xml()
+
+def test_model_one2many():
+    class Line(facho.model.Model):
+        __name__ = 'Line'
+
+        quantity = fields.Attribute('quantity')
+        
+    class Invoice(facho.model.Model):
+        __name__ = 'Invoice'
+
+        lines = fields.One2Many(Line)
+
+    invoice = Invoice()
+    line = invoice.lines.create()
+    line.quantity = 3
+    line = invoice.lines.create()
+    line.quantity = 5
+    assert '<Invoice><Line quantity="3"/><Line quantity="5"/></Invoice>' == invoice.to_xml()
+
+
+def test_model_one2many_with_on_changes():
+    class Line(facho.model.Model):
+        __name__ = 'Line'
+
+        quantity = fields.Attribute('quantity')
+        
+    class Invoice(facho.model.Model):
+        __name__ = 'Invoice'
+
+        lines = fields.One2Many(Line)
+        count = fields.Attribute('count', default=0)
+        
+        @fields.on_change(['lines'])
+        def refresh_count(self, name, value):
+            self.count = len(self.lines)
+
+    invoice = Invoice()
+    line = invoice.lines.create()
+    line.quantity = 3
+    line = invoice.lines.create()
+    line.quantity = 5
+
+    assert len(invoice.lines) == 2
+    assert '<Invoice count="2"><Line quantity="3"/><Line quantity="5"/></Invoice>' == invoice.to_xml()
+
+def test_model_one2many_as_list():
+    class Line(facho.model.Model):
+        __name__ = 'Line'
+
+        quantity = fields.Attribute('quantity')
+        
+    class Invoice(facho.model.Model):
+        __name__ = 'Invoice'
+
+        lines = fields.One2Many(Line)
+
+    invoice = Invoice()
+    line = invoice.lines.create()
+    line.quantity = 3
+    line = invoice.lines.create()
+    line.quantity = 5
+
+    lines = list(invoice.lines)
+    assert len(list(invoice.lines)) == 2
+
+    for line in lines:
+        assert isinstance(line, Line)
+    assert '<Invoice><Line quantity="3"/><Line quantity="5"/></Invoice>' == invoice.to_xml()
+
+
+def test_model_attributes_order():
+    class Line(facho.model.Model):
+        __name__ = 'Line'
+
+        quantity = fields.Attribute('quantity')
+        
+    class Invoice(facho.model.Model):
+        __name__ = 'Invoice'
+
+        line1 = fields.Many2One(Line, name='Line1')
+        line2 = fields.Many2One(Line, name='Line2')
+        line3 = fields.Many2One(Line, name='Line3')
+
+
+    invoice = Invoice()
+    invoice.line2.quantity = 2
+    invoice.line3.quantity = 3
+    invoice.line1.quantity = 1
+
+    assert '<Invoice><Line1 quantity="1"/><Line2 quantity="2"/><Line3 quantity="3"/></Invoice>' == invoice.to_xml()
+
+
+def test_field_amount():
+    class Line(facho.model.Model):
+        __name__ = 'Line'
+
+        amount = fields.Amount(name='Amount', precision=1)
+        amount_as_attribute = fields.Attribute('amount')
+
+        @fields.on_change(['amount'])
+        def on_amount(self, name, value):
+            self.amount_as_attribute = self.amount
+
+    line = Line()
+    line.amount = 33
+
+    assert '<Line amount="33.0"/>' == line.to_xml()
+        
+
+def test_model_setup():
+    class Line(facho.model.Model):
+        __name__ = 'Line'
+
+        amount = fields.Attribute(name='amount')
+
+        def __setup__(self):
+            self.amount = 23
+
+    line = Line()
+    assert '<Line amount="23"/>' == line.to_xml()
--- a/tests/test_model_invoice.py
+++ b/tests/test_model_invoice.py
@@ -0,0 +1,119 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# This file is part of facho.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+"""Nuevo esquema para modelar segun decreto"""
+
+from datetime import datetime
+
+import pytest
+from lxml import etree
+import facho.fe.model as model
+import facho.fe.form as form
+from facho import fe
+import helpers
+
+def simple_invoice():
+    invoice = model.Invoice()
+    invoice.dian.software_security_code = '12345'
+    invoice.dian.software_provider.provider_id = 'provider-id'
+    invoice.dian.software_provider.software_id = 'facho'
+    invoice.dian.control.prefix = 'SETP'
+    invoice.dian.control.from_range =  '1000'
+    invoice.dian.control.to_range = '1000'
+    invoice.id = '323200000129'
+    invoice.issue = datetime.strptime('2019-01-16 10:53:10-05:00', '%Y-%m-%d %H:%M:%S%z')
+    invoice.supplier.party.id = '700085371'
+    invoice.customer.party.id = '800199436'
+
+    line = invoice.lines.create()
+    line.add_tax(model.Taxes.Iva(19.0))
+
+    # TODO(bit4bit) acoplamiento temporal
+    # se debe crear primero el subotatl
+    # para poder calcularse al cambiar el precio
+    line.quantity = 1
+    line.price = 1_500_000
+
+    return invoice
+
+def test_simple_invoice_cufe():
+    token = '693ff6f2a553c3646a063436fd4dd9ded0311471'
+    environment = fe.AMBIENTE_PRODUCCION
+    invoice = simple_invoice()
+    assert invoice.cufe(token, environment) == '8bb918b19ba22a694f1da11c643b5e9de39adf60311cf179179e9b33381030bcd4c3c3f156c506ed5908f9276f5bd9b4'
+
+def test_simple_invoice_sign_dian(monkeypatch):
+    invoice = simple_invoice()
+
+    xmlstring = invoice.to_xml()
+    p12_data = open('./tests/example.p12', 'rb').read()
+    signer = fe.DianXMLExtensionSigner.from_bytes(p12_data)
+
+    with monkeypatch.context() as m:
+        helpers.mock_urlopen(m)
+        xmlsigned = signer.sign_xml_string(xmlstring)
+    assert "Signature" in xmlsigned
+
+
+def test_dian_extension_authorization_provider():
+    invoice = simple_invoice()
+    xml = fe.FeXML.from_string(invoice.to_xml())
+    provider_id = xml.get_element('/fe:Invoice/ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/sts:DianExtensions/sts:AuthorizationProvider/sts:AuthorizationProviderID')
+
+    assert provider_id.attrib['schemeID'] == '4'
+    assert provider_id.attrib['schemeName'] == '31'
+    assert provider_id.attrib['schemeAgencyName'] == 'CO, DIAN (Dirección de Impuestos y Aduanas Nacionales)'
+    assert provider_id.attrib['schemeAgencyID'] == '195'
+    assert provider_id.text == '800197268'
+
+def test_invoicesimple_xml_signed_using_fexml(monkeypatch):
+    invoice = simple_invoice()
+
+    xml = fe.FeXML.from_string(invoice.to_xml())
+
+    signer = fe.DianXMLExtensionSigner('./tests/example.p12')
+
+    print(xml.tostring())
+    with monkeypatch.context() as m:
+        import helpers
+        helpers.mock_urlopen(m)
+        xml.add_extension(signer)
+
+    elem = xml.get_element('/fe:Invoice/ext:UBLExtensions/ext:UBLExtension[2]/ext:ExtensionContent/ds:Signature')
+    assert elem.text is not None
+
+def test_invoice_supplier_party():
+    invoice = simple_invoice()
+    invoice.supplier.party.name = 'superfacho'
+    invoice.supplier.party.tax_scheme.registration_name = 'legal-superfacho'
+    invoice.supplier.party.contact.email = 'superfacho@etrivial.net'
+    
+    xml = fe.FeXML.from_string(invoice.to_xml())
+
+    name = xml.get_element('/fe:Invoice/cac:AccountingSupplierParty/cac:Party/cac:PartyName/cbc:Name')
+    assert name.text == 'superfacho'
+
+    name = xml.get_element('/fe:Invoice/cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme/cbc:RegistrationName')
+    assert name.text == 'legal-superfacho'
+
+    name = xml.get_element('/fe:Invoice/cac:AccountingSupplierParty/cac:Party/cac:Contact/cbc:ElectronicEmail')
+    assert name.text == 'superfacho@etrivial.net'
+
+def test_invoice_customer_party():
+    invoice = simple_invoice()
+    invoice.customer.party.name = 'superfacho-customer'
+    invoice.customer.party.tax_scheme.registration_name = 'legal-superfacho-customer'
+    invoice.customer.party.contact.email = 'superfacho@etrivial.net'
+
+    xml = fe.FeXML.from_string(invoice.to_xml())
+
+    name = xml.get_element('/fe:Invoice/cac:AccountingCustomerParty/cac:Party/cac:PartyName/cbc:Name')
+    assert name.text == 'superfacho-customer'
+
+    name = xml.get_element('/fe:Invoice/cac:AccountingCustomerParty/cac:Party/cac:PartyTaxScheme/cbc:RegistrationName')
+    assert name.text == 'legal-superfacho-customer'
+
+    name = xml.get_element('/fe:Invoice/cac:AccountingCustomerParty/cac:Party/cac:Contact/cbc:ElectronicEmail')
+    assert name.text == 'superfacho@etrivial.net'
--- a/tests/test_nomina.py
+++ b/tests/test_nomina.py
@@ -4,467 +4,467 @@
 # this repository contains the full copyright notices and license terms.

 """Tests for `facho` package."""
-import re
+# import re

-import pytest
+# import pytest

-from facho import fe
+# from facho import fe

-import helpers
+# import helpers

-def assert_error(errors, msg):
-    for error in errors:
-        if str(error) == msg:
-            return True
+# def assert_error(errors, msg):
+#     for error in errors:
+#         if str(error) == msg:
+#             return True

-    raise "wants error: %s" % (msg)
+#     raise "wants error: %s" % (msg)

-def test_adicionar_devengado_Basico():
-    nomina = fe.nomina.DIANNominaIndividual()
+# def test_adicionar_devengado_Basico():
+#     nomina = fe.nomina.DIANNominaIndividual()

-    nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
-        dias_trabajados = 30,
-        sueldo_trabajado = fe.nomina.Amount(1_000_000)
-    ))
+#     nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
+#         dias_trabajados = 30,
+#         sueldo_trabajado = fe.nomina.Amount(1_000_000)
+#     ))

-    xml = nomina.toFachoXML()
-    assert xml.get_element_attribute('/nomina:NominaIndividual/Devengados/Basico', 'DiasTrabajados') == '30'
-    assert xml.get_element_attribute('/nomina:NominaIndividual/Devengados/Basico', 'SueldoTrabajado') == '1000000.00'
+#     xml = nomina.toFachoXML()
+#     assert xml.get_element_attribute('/nomina:NominaIndividual/Devengados/Basico', 'DiasTrabajados') == '30'
+#     assert xml.get_element_attribute('/nomina:NominaIndividual/Devengados/Basico', 'SueldoTrabajado') == '1000000.00'

-def test_adicionar_devengado_transporte():
-    nomina = fe.nomina.DIANNominaIndividual()
+# def test_adicionar_devengado_transporte():
+#     nomina = fe.nomina.DIANNominaIndividual()

-    nomina.adicionar_devengado(fe.nomina.DevengadoTransporte(
-        auxilio_transporte = fe.nomina.Amount(2_000_000)
-    ))
+#     nomina.adicionar_devengado(fe.nomina.DevengadoTransporte(
+#         auxilio_transporte = fe.nomina.Amount(2_000_000)
+#     ))

-    xml = nomina.toFachoXML()
+#     xml = nomina.toFachoXML()

-    assert xml.get_element_attribute('/nomina:NominaIndividual/Devengados/Transporte', 'AuxilioTransporte') == '2000000.0'
+#     assert xml.get_element_attribute('/nomina:NominaIndividual/Devengados/Transporte', 'AuxilioTransporte') == '2000000.0'

-def test_adicionar_devengado_comprobante_total():
-    nomina = fe.nomina.DIANNominaIndividual()
+# def test_adicionar_devengado_comprobante_total():
+#     nomina = fe.nomina.DIANNominaIndividual()

-    nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
-        dias_trabajados = 60,
-        sueldo_trabajado = fe.nomina.Amount(2_000_000)
-    ))
+#     nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
+#         dias_trabajados = 60,
+#         sueldo_trabajado = fe.nomina.Amount(2_000_000)
+#     ))

-    nomina.adicionar_deduccion(fe.nomina.DeduccionSalud(
-        porcentaje = fe.nomina.Amount(19),
-        deduccion = fe.nomina.Amount(1_000_000)
-    ))
+#     nomina.adicionar_deduccion(fe.nomina.DeduccionSalud(
+#         porcentaje = fe.nomina.Amount(19),
+#         deduccion = fe.nomina.Amount(1_000_000)
+#     ))

-
-    xml = nomina.toFachoXML()
-
-    assert xml.get_element_text('/nomina:NominaIndividual/ComprobanteTotal') == '1000000.00'
-
-def test_adicionar_devengado_comprobante_total_cero():
-    nomina = fe.nomina.DIANNominaIndividual()
-
-    nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
-        dias_trabajados = 60,
-        sueldo_trabajado = fe.nomina.Amount(1_000_000)
-    ))
-
-    nomina.adicionar_deduccion(fe.nomina.DeduccionSalud(
-        porcentaje = fe.nomina.Amount(19),
-        deduccion = fe.nomina.Amount(1_000_000)
-    ))
-
-    xml = nomina.toFachoXML()
-
-    assert xml.get_element_text('/nomina:NominaIndividual/ComprobanteTotal') == '0.00'
-
-def test_adicionar_devengado_transporte_muchos():
-    nomina = fe.nomina.DIANNominaIndividual()
-
-    nomina.adicionar_devengado(fe.nomina.DevengadoTransporte(
-        auxilio_transporte = fe.nomina.Amount(2_000_000)
-    ))
-
-    nomina.adicionar_devengado(fe.nomina.DevengadoTransporte(
-        auxilio_transporte = fe.nomina.Amount(3_000_000)
-    ))
-
-    xml = nomina.toFachoXML()
-    print(xml)
-    assert xml.get_element_text('/nomina:NominaIndividual/DevengadosTotal') == '5000000.00'
-
-def test_adicionar_deduccion_salud():
-    nomina = fe.nomina.DIANNominaIndividual()
-
-    nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
-        dias_trabajados = 60,
-        sueldo_trabajado = fe.nomina.Amount(1000)
-    ))
-
-    nomina.adicionar_deduccion(fe.nomina.DeduccionSalud(
-        porcentaje = fe.nomina.Amount(19),
-        deduccion = fe.nomina.Amount(1000)
-    ))
-
-    xml = nomina.toFachoXML()
-    print(xml)
-    assert xml.get_element_text('/nomina:NominaIndividual/DeduccionesTotal') == '1000.00'
-
-def test_nomina_obligatorios_segun_anexo_tecnico():
-    nomina = fe.nomina.DIANNominaIndividual()
-
-    errors = nomina.validate()
-
-    assert_error(errors, 'se requiere Periodo')
-    assert_error(errors, 'se requiere DevengadoBasico')
-    assert_error(errors, 'se requiere DeduccionSalud')
-    assert_error(errors, 'se requiere DeduccionFondoPension')
-
-def test_nomina_xml():
-    nomina = fe.nomina.DIANNominaIndividual()
-
-    nomina.asignar_metadata(fe.nomina.Metadata(
-        novedad=fe.nomina.Novedad(
-            activa = True,
-            cune = "N0111"
-        ),
-        secuencia=fe.nomina.NumeroSecuencia(
-            prefijo = 'N',
-            consecutivo='00001'
-        ),
-        lugar_generacion=fe.nomina.Lugar(
-            pais = fe.nomina.Pais(
-                code = 'CO'
-            ),
-            departamento = fe.nomina.Departamento(
-                code = '05'
-            ),
-            municipio = fe.nomina.Municipio(
-                code = '05001'
-            ),
-        ),
-        proveedor=fe.nomina.Proveedor(
-            nit='999999',
-            dv=2,
-            software_id='xx',
-            software_pin='12',
-            razon_social='facho'
-        )
-    ))
-
-    nomina.asignar_informacion_general(fe.nomina.InformacionGeneral(
-        fecha_generacion = '2020-01-16',
-        hora_generacion = '1053:10-05:00',
-        tipo_ambiente = fe.nomina.InformacionGeneral.AMBIENTE_PRODUCCION,
-        software_pin = '693',
-        tipo_xml = fe.nomina.InformacionGeneral.TIPO_XML_NORMAL,
-        periodo_nomina = fe.nomina.PeriodoNomina(code='1'),
-        tipo_moneda = fe.nomina.TipoMoneda(code='COP')
-    ))
-
-    nomina.asignar_empleador(fe.nomina.Empleador(
-        razon_social='facho',
-        nit = '700085371',
-        dv = '1',
-        pais = fe.nomina.Pais(
-            code = 'CO'
-        ),
-        departamento = fe.nomina.Departamento(
-            code = '05'
-        ),
-        municipio = fe.nomina.Municipio(
-            code = '05001'
-        ),
-        direccion = 'calle etrivial'
-    ))
-
-    nomina.asignar_trabajador(fe.nomina.Trabajador(
-        tipo_contrato = fe.nomina.TipoContrato(
-            code = '1'
-        ),
-        alto_riesgo = False,
-        tipo_documento = fe.nomina.TipoDocumento(
-            code = '11'
-        ),
-        primer_apellido = 'gnu',
-        segundo_apellido = 'emacs',
-        primer_nombre = 'facho',
-        lugar_trabajo = fe.nomina.LugarTrabajo(
-            pais = fe.nomina.Pais(code='CO'),
-            departamento = fe.nomina.Departamento(code='05'),
-            municipio = fe.nomina.Municipio(code='05001'),
-            direccion = 'calle facho'
-        ),
-        numero_documento = '800199436',
-        tipo = fe.nomina.TipoTrabajador(
-            code = '01'
-        ),
-        salario_integral = True,
-        sueldo = fe.nomina.Amount(1_500_000)
-    ))
-
-    nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
-        dias_trabajados = 60,
-        sueldo_trabajado = fe.nomina.Amount(3_500_000)
-    ))
-
-    nomina.adicionar_deduccion(fe.nomina.DeduccionSalud(
-        porcentaje = fe.nomina.Amount(19),
-        deduccion = fe.nomina.Amount(1_000_000)
-    ))
-
-    xml = nomina.toFachoXML()
-    expected_cune = 'b8f9b6c24de07ffd92ea5467433a3b69357cfaffa7c19722db94b2e0eca41d057085a54f484b5da15ff585e773b0b0ab'
-    assert xml.get_element_attribute('/nomina:NominaIndividual/InformacionGeneral', 'CUNE') == expected_cune
-    assert xml.get_element_attribute('/nomina:NominaIndividual/InformacionGeneral', 'TipoXML') == '102'
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/NumeroSecuenciaXML/@Numero') == 'N00001'
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/NumeroSecuenciaXML/@Consecutivo') == '00001'
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/LugarGeneracionXML/@Pais') == 'CO'
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/LugarGeneracionXML/@DepartamentoEstado') == '05'
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/LugarGeneracionXML/@MunicipioCiudad') == '05001'
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/ProveedorXML/@NIT') == '999999'
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/ProveedorXML/@DV') == '2'
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/ProveedorXML/@SoftwareID') == 'xx'
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/ProveedorXML/@SoftwareSC') is not None
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/CodigoQR') == f"https://catalogo-vpfe.dian.gov.co/document/searchqr?documentkey={expected_cune}"
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/Empleador/@NIT') == '700085371'
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/Trabajador/@NumeroDocumento') == '800199436'
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/Novedad') == 'True'
-    assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/Novedad/@CUNENov') == 'N0111'
-
-    # confirmar el namespace
-    assert 'xmlns="dian:gov:co:facturaelectronica:NominaIndividual"' in xml.tostring()
-
-def test_asignar_pago():
-    nomina = fe.nomina.DIANNominaIndividual()
-    nomina.asignar_pago(fe.nomina.Pago(
-        forma = fe.nomina.FormaPago(code='1'),
-        metodo = fe.nomina.MetodoPago(code='1')
-    ))
-
-def test_nomina_xmlsign(monkeypatch):
-    nomina = fe.nomina.DIANNominaIndividual()
-    xml = nomina.toFachoXML()
-
-    signer = fe.nomina.DianXMLExtensionSigner('./tests/example.p12')
-    xml.add_extension(signer)
-
-    print(xml.tostring())
-    elem = xml.get_element('/nomina:NominaIndividual/ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/ds:Signature')
-    assert elem is not None
-
-
-
-def test_nomina_devengado_horas_extras_nocturnas():
-    nomina = fe.nomina.DIANNominaIndividual()
-
-    nomina.adicionar_devengado(fe.nomina.DevengadoHorasExtrasNocturnas(
-        horas_extras=[
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T19:09:55',
-                hora_fin='2021-11-30T20:09:55',
-                cantidad=1,
-                porcentaje=fe.nomina.Amount(1),
-                pago=fe.nomina.Amount(100)
-            ),
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T18:09:55',
-                hora_fin='2021-11-30T19:09:55',
-                cantidad=2,
-                porcentaje=fe.nomina.Amount(2),
-                pago=fe.nomina.Amount(200)
-            )
-        ]
-    ))
-
-    xml = nomina.toFachoXML()
-    extras = xml.get_element('/nomina:NominaIndividual/Devengados/HENs/HEN', multiple=True)
-    assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
-    assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
-    assert extras[0].get('Cantidad') == '1'
-    assert extras[0].get('Porcentaje') == '1.00'
-    assert extras[0].get('Pago') == '100.00'
-    assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
-    assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
-    assert extras[1].get('Cantidad') == '2'
-    assert extras[1].get('Porcentaje') == '2.00'
-    assert extras[1].get('Pago') == '200.00'
-
-def test_nomina_devengado_horas_recargo_nocturno():
-    nomina = fe.nomina.DIANNominaIndividual()
-
-    nomina.adicionar_devengado(fe.nomina.DevengadoHorasRecargoNocturno(
-        horas_extras=[
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T19:09:55',
-                hora_fin='2021-11-30T20:09:55',
-                cantidad=1,
-                porcentaje=fe.nomina.Amount(1),
-                pago=fe.nomina.Amount(100)
-            ),
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T18:09:55',
-                hora_fin='2021-11-30T19:09:55',
-                cantidad=2,
-                porcentaje=fe.nomina.Amount(2),
-                pago=fe.nomina.Amount(200)
-            )
-        ]
-    ))
-
-    xml = nomina.toFachoXML()
-    extras = xml.get_element('/nomina:NominaIndividual/Devengados/HRNs/HRN', multiple=True)
-    assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
-    assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
-    assert extras[0].get('Cantidad') == '1'
-    assert extras[0].get('Porcentaje') == '1.00'
-    assert extras[0].get('Pago') == '100.00'
-    assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
-    assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
-    assert extras[1].get('Cantidad') == '2'
-    assert extras[1].get('Porcentaje') == '2.00'
-    assert extras[1].get('Pago') == '200.00'
-
-def test_nomina_devengado_horas_extras_diarias_dominicales_y_festivos():
-    nomina = fe.nomina.DIANNominaIndividual()
-
-    nomina.adicionar_devengado(fe.nomina.DevengadoHorasExtrasDiariasDominicalesYFestivos(
-        horas_extras=[
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T19:09:55',
-                hora_fin='2021-11-30T20:09:55',
-                cantidad=1,
-                porcentaje=fe.nomina.Amount(1),
-                pago=fe.nomina.Amount(100)
-            ),
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T18:09:55',
-                hora_fin='2021-11-30T19:09:55',
-                cantidad=2,
-                porcentaje=fe.nomina.Amount(2),
-                pago=fe.nomina.Amount(200)
-            )
-        ]
-    ))
-
-    xml = nomina.toFachoXML()
-    extras = xml.get_element('/nomina:NominaIndividual/Devengados/HEDDFs/HEDDF', multiple=True)
-    assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
-    assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
-    assert extras[0].get('Cantidad') == '1'
-    assert extras[0].get('Porcentaje') == '1.00'
-    assert extras[0].get('Pago') == '100.00'
-    assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
-    assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
-    assert extras[1].get('Cantidad') == '2'
-    assert extras[1].get('Porcentaje') == '2.00'
-    assert extras[1].get('Pago') == '200.00'
-
-def test_nomina_devengado_horas_recargo_diarias_dominicales_y_festivos():
-    nomina = fe.nomina.DIANNominaIndividual()
-
-    nomina.adicionar_devengado(fe.nomina.DevengadoHorasRecargoDiariasDominicalesYFestivos(
-        horas_extras=[
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T19:09:55',
-                hora_fin='2021-11-30T20:09:55',
-                cantidad=1,
-                porcentaje=fe.nomina.Amount(1),
-                pago=fe.nomina.Amount(100)
-            ),
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T18:09:55',
-                hora_fin='2021-11-30T19:09:55',
-                cantidad=2,
-                porcentaje=fe.nomina.Amount(2),
-                pago=fe.nomina.Amount(200)
-            )
-        ]
-    ))
-
-    xml = nomina.toFachoXML()
-    extras = xml.get_element('/nomina:NominaIndividual/Devengados/HRDDFs/HRDDF', multiple=True)
-    assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
-    assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
-    assert extras[0].get('Cantidad') == '1'
-    assert extras[0].get('Porcentaje') == '1.00'
-    assert extras[0].get('Pago') == '100.00'
-    assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
-    assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
-    assert extras[1].get('Cantidad') == '2'
-    assert extras[1].get('Porcentaje') == '2.00'
-    assert extras[1].get('Pago') == '200.00'
-
-
-def test_nomina_devengado_horas_extras_nocturnas_dominicales_y_festivos():
-    nomina = fe.nomina.DIANNominaIndividual()
-
-    nomina.adicionar_devengado(fe.nomina.DevengadoHorasExtrasNocturnasDominicalesYFestivos(
-        horas_extras=[
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T19:09:55',
-                hora_fin='2021-11-30T20:09:55',
-                cantidad=1,
-                porcentaje=fe.nomina.Amount(1),
-                pago=fe.nomina.Amount(100)
-            ),
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T18:09:55',
-                hora_fin='2021-11-30T19:09:55',
-                cantidad=2,
-                porcentaje=fe.nomina.Amount(2),
-                pago=fe.nomina.Amount(200)
-            )
-        ]
-    ))
-
-    xml = nomina.toFachoXML()
-    extras = xml.get_element('/nomina:NominaIndividual/Devengados/HENDFs/HENDF', multiple=True)
-    assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
-    assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
-    assert extras[0].get('Cantidad') == '1'
-    assert extras[0].get('Porcentaje') == '1.00'
-    assert extras[0].get('Pago') == '100.00'
-    assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
-    assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
-    assert extras[1].get('Cantidad') == '2'
-    assert extras[1].get('Porcentaje') == '2.00'
-    assert extras[1].get('Pago') == '200.00'
-
-def test_nomina_devengado_horas_recargo_nocturno_dominicales_y_festivos():
-    nomina = fe.nomina.DIANNominaIndividual()
-
-    nomina.adicionar_devengado(fe.nomina.DevengadoHorasRecargoNocturnoDominicalesYFestivos(
-        horas_extras=[
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T19:09:55',
-                hora_fin='2021-11-30T20:09:55',
-                cantidad=1,
-                porcentaje=fe.nomina.Amount(1),
-                pago=fe.nomina.Amount(100)
-            ),
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T18:09:55',
-                hora_fin='2021-11-30T19:09:55',
-                cantidad=2,
-                porcentaje=fe.nomina.Amount(2),
-                pago=fe.nomina.Amount(200)
-            )
-        ]
-    ))
-
-    xml = nomina.toFachoXML()
-    extras = xml.get_element('/nomina:NominaIndividual/Devengados/HRNDFs/HRNDF', multiple=True)
-    assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
-    assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
-    assert extras[0].get('Cantidad') == '1'
-    assert extras[0].get('Porcentaje') == '1.00'
-    assert extras[0].get('Pago') == '100.00'
-    assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
-    assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
-    assert extras[1].get('Cantidad') == '2'
-    assert extras[1].get('Porcentaje') == '2.00'
-    assert extras[1].get('Pago') == '200.00'
-
-def test_fecha_validacion():
-    with pytest.raises(ValueError) as e:
-        fe.nomina.Fecha('535-35-3')
+
+#     xml = nomina.toFachoXML()
+
+#     assert xml.get_element_text('/nomina:NominaIndividual/ComprobanteTotal') == '1000000.00'
+
+# def test_adicionar_devengado_comprobante_total_cero():
+#     nomina = fe.nomina.DIANNominaIndividual()
+
+#     nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
+#         dias_trabajados = 60,
+#         sueldo_trabajado = fe.nomina.Amount(1_000_000)
+#     ))
+
+#     nomina.adicionar_deduccion(fe.nomina.DeduccionSalud(
+#         porcentaje = fe.nomina.Amount(19),
+#         deduccion = fe.nomina.Amount(1_000_000)
+#     ))
+
+#     xml = nomina.toFachoXML()
+
+#     assert xml.get_element_text('/nomina:NominaIndividual/ComprobanteTotal') == '0.00'
+
+# def test_adicionar_devengado_transporte_muchos():
+#     nomina = fe.nomina.DIANNominaIndividual()
+
+#     nomina.adicionar_devengado(fe.nomina.DevengadoTransporte(
+#         auxilio_transporte = fe.nomina.Amount(2_000_000)
+#     ))
+
+#     nomina.adicionar_devengado(fe.nomina.DevengadoTransporte(
+#         auxilio_transporte = fe.nomina.Amount(3_000_000)
+#     ))
+
+#     xml = nomina.toFachoXML()
+#     print(xml)
+#     assert xml.get_element_text('/nomina:NominaIndividual/DevengadosTotal') == '5000000.00'
+
+# def test_adicionar_deduccion_salud():
+#     nomina = fe.nomina.DIANNominaIndividual()
+
+#     nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
+#         dias_trabajados = 60,
+#         sueldo_trabajado = fe.nomina.Amount(1000)
+#     ))
+
+#     nomina.adicionar_deduccion(fe.nomina.DeduccionSalud(
+#         porcentaje = fe.nomina.Amount(19),
+#         deduccion = fe.nomina.Amount(1000)
+#     ))
+
+#     xml = nomina.toFachoXML()
+#     print(xml)
+#     assert xml.get_element_text('/nomina:NominaIndividual/DeduccionesTotal') == '1000.00'
+
+# def test_nomina_obligatorios_segun_anexo_tecnico():
+#     nomina = fe.nomina.DIANNominaIndividual()
+
+#     errors = nomina.validate()
+
+#     assert_error(errors, 'se requiere Periodo')
+#     assert_error(errors, 'se requiere DevengadoBasico')
+#     assert_error(errors, 'se requiere DeduccionSalud')
+#     assert_error(errors, 'se requiere DeduccionFondoPension')
+
+# def test_nomina_xml():
+#     nomina = fe.nomina.DIANNominaIndividual()
+
+#     nomina.asignar_metadata(fe.nomina.Metadata(
+#         novedad=fe.nomina.Novedad(
+#             activa = True,
+#             cune = "N0111"
+#         ),
+#         secuencia=fe.nomina.NumeroSecuencia(
+#             prefijo = 'N',
+#             consecutivo='00001'
+#         ),
+#         lugar_generacion=fe.nomina.Lugar(
+#             pais = fe.nomina.Pais(
+#                 code = 'CO'
+#             ),
+#             departamento = fe.nomina.Departamento(
+#                 code = '05'
+#             ),
+#             municipio = fe.nomina.Municipio(
+#                 code = '05001'
+#             ),
+#         ),
+#         proveedor=fe.nomina.Proveedor(
+#             nit='999999',
+#             dv=2,
+#             software_id='xx',
+#             software_pin='12',
+#             razon_social='facho'
+#         )
+#     ))
+
+#     nomina.asignar_informacion_general(fe.nomina.InformacionGeneral(
+#         fecha_generacion = '2020-01-16',
+#         hora_generacion = '1053:10-05:00',
+#         tipo_ambiente = fe.nomina.InformacionGeneral.AMBIENTE_PRODUCCION,
+#         software_pin = '693',
+#         tipo_xml = fe.nomina.InformacionGeneral.TIPO_XML_NORMAL,
+#         periodo_nomina = fe.nomina.PeriodoNomina(code='1'),
+#         tipo_moneda = fe.nomina.TipoMoneda(code='COP')
+#     ))
+
+#     nomina.asignar_empleador(fe.nomina.Empleador(
+#         razon_social='facho',
+#         nit = '700085371',
+#         dv = '1',
+#         pais = fe.nomina.Pais(
+#             code = 'CO'
+#         ),
+#         departamento = fe.nomina.Departamento(
+#             code = '05'
+#         ),
+#         municipio = fe.nomina.Municipio(
+#             code = '05001'
+#         ),
+#         direccion = 'calle etrivial'
+#     ))
+
+#     nomina.asignar_trabajador(fe.nomina.Trabajador(
+#         tipo_contrato = fe.nomina.TipoContrato(
+#             code = '1'
+#         ),
+#         alto_riesgo = False,
+#         tipo_documento = fe.nomina.TipoDocumento(
+#             code = '11'
+#         ),
+#         primer_apellido = 'gnu',
+#         segundo_apellido = 'emacs',
+#         primer_nombre = 'facho',
+#         lugar_trabajo = fe.nomina.LugarTrabajo(
+#             pais = fe.nomina.Pais(code='CO'),
+#             departamento = fe.nomina.Departamento(code='05'),
+#             municipio = fe.nomina.Municipio(code='05001'),
+#             direccion = 'calle facho'
+#         ),
+#         numero_documento = '800199436',
+#         tipo = fe.nomina.TipoTrabajador(
+#             code = '01'
+#         ),
+#         salario_integral = True,
+#         sueldo = fe.nomina.Amount(1_500_000)
+#     ))
+
+#     nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
+#         dias_trabajados = 60,
+#         sueldo_trabajado = fe.nomina.Amount(3_500_000)
+#     ))
+
+#     nomina.adicionar_deduccion(fe.nomina.DeduccionSalud(
+#         porcentaje = fe.nomina.Amount(19),
+#         deduccion = fe.nomina.Amount(1_000_000)
+#     ))
+
+#     xml = nomina.toFachoXML()
+#     expected_cune = 'b8f9b6c24de07ffd92ea5467433a3b69357cfaffa7c19722db94b2e0eca41d057085a54f484b5da15ff585e773b0b0ab'
+#     assert xml.get_element_attribute('/nomina:NominaIndividual/InformacionGeneral', 'CUNE') == expected_cune
+#     assert xml.get_element_attribute('/nomina:NominaIndividual/InformacionGeneral', 'TipoXML') == '102'
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/NumeroSecuenciaXML/@Numero') == 'N00001'
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/NumeroSecuenciaXML/@Consecutivo') == '00001'
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/LugarGeneracionXML/@Pais') == 'CO'
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/LugarGeneracionXML/@DepartamentoEstado') == '05'
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/LugarGeneracionXML/@MunicipioCiudad') == '05001'
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/ProveedorXML/@NIT') == '999999'
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/ProveedorXML/@DV') == '2'
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/ProveedorXML/@SoftwareID') == 'xx'
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/ProveedorXML/@SoftwareSC') is not None
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/CodigoQR') == f"https://catalogo-vpfe.dian.gov.co/document/searchqr?documentkey={expected_cune}"
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/Empleador/@NIT') == '700085371'
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/Trabajador/@NumeroDocumento') == '800199436'
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/Novedad') == 'True'
+#     assert xml.get_element_text_or_attribute('/nomina:NominaIndividual/Novedad/@CUNENov') == 'N0111'
+
+#     # confirmar el namespace
+#     assert 'xmlns="dian:gov:co:facturaelectronica:NominaIndividual"' in xml.tostring()
+
+# def test_asignar_pago():
+#     nomina = fe.nomina.DIANNominaIndividual()
+#     nomina.asignar_pago(fe.nomina.Pago(
+#         forma = fe.nomina.FormaPago(code='1'),
+#         metodo = fe.nomina.MetodoPago(code='1')
+#     ))
+
+# def test_nomina_xmlsign(monkeypatch):
+#     nomina = fe.nomina.DIANNominaIndividual()
+#     xml = nomina.toFachoXML()
+
+#     signer = fe.nomina.DianXMLExtensionSigner('./tests/example.p12')
+#     xml.add_extension(signer)
+
+#     print(xml.tostring())
+#     elem = xml.get_element('/nomina:NominaIndividual/ext:UBLExtensions/ext:UBLExtension/ext:ExtensionContent/ds:Signature')
+#     assert elem is not None
+
+
+
+# def test_nomina_devengado_horas_extras_nocturnas():
+#     nomina = fe.nomina.DIANNominaIndividual()
+
+#     nomina.adicionar_devengado(fe.nomina.DevengadoHorasExtrasNocturnas(
+#         horas_extras=[
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T19:09:55',
+#                 hora_fin='2021-11-30T20:09:55',
+#                 cantidad=1,
+#                 porcentaje=fe.nomina.Amount(1),
+#                 pago=fe.nomina.Amount(100)
+#             ),
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T18:09:55',
+#                 hora_fin='2021-11-30T19:09:55',
+#                 cantidad=2,
+#                 porcentaje=fe.nomina.Amount(2),
+#                 pago=fe.nomina.Amount(200)
+#             )
+#         ]
+#     ))
+
+#     xml = nomina.toFachoXML()
+#     extras = xml.get_element('/nomina:NominaIndividual/Devengados/HENs/HEN', multiple=True)
+#     assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
+#     assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
+#     assert extras[0].get('Cantidad') == '1'
+#     assert extras[0].get('Porcentaje') == '1.00'
+#     assert extras[0].get('Pago') == '100.00'
+#     assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
+#     assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
+#     assert extras[1].get('Cantidad') == '2'
+#     assert extras[1].get('Porcentaje') == '2.00'
+#     assert extras[1].get('Pago') == '200.00'
+
+# def test_nomina_devengado_horas_recargo_nocturno():
+#     nomina = fe.nomina.DIANNominaIndividual()
+
+#     nomina.adicionar_devengado(fe.nomina.DevengadoHorasRecargoNocturno(
+#         horas_extras=[
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T19:09:55',
+#                 hora_fin='2021-11-30T20:09:55',
+#                 cantidad=1,
+#                 porcentaje=fe.nomina.Amount(1),
+#                 pago=fe.nomina.Amount(100)
+#             ),
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T18:09:55',
+#                 hora_fin='2021-11-30T19:09:55',
+#                 cantidad=2,
+#                 porcentaje=fe.nomina.Amount(2),
+#                 pago=fe.nomina.Amount(200)
+#             )
+#         ]
+#     ))
+
+#     xml = nomina.toFachoXML()
+#     extras = xml.get_element('/nomina:NominaIndividual/Devengados/HRNs/HRN', multiple=True)
+#     assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
+#     assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
+#     assert extras[0].get('Cantidad') == '1'
+#     assert extras[0].get('Porcentaje') == '1.00'
+#     assert extras[0].get('Pago') == '100.00'
+#     assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
+#     assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
+#     assert extras[1].get('Cantidad') == '2'
+#     assert extras[1].get('Porcentaje') == '2.00'
+#     assert extras[1].get('Pago') == '200.00'
+
+# def test_nomina_devengado_horas_extras_diarias_dominicales_y_festivos():
+#     nomina = fe.nomina.DIANNominaIndividual()
+
+#     nomina.adicionar_devengado(fe.nomina.DevengadoHorasExtrasDiariasDominicalesYFestivos(
+#         horas_extras=[
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T19:09:55',
+#                 hora_fin='2021-11-30T20:09:55',
+#                 cantidad=1,
+#                 porcentaje=fe.nomina.Amount(1),
+#                 pago=fe.nomina.Amount(100)
+#             ),
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T18:09:55',
+#                 hora_fin='2021-11-30T19:09:55',
+#                 cantidad=2,
+#                 porcentaje=fe.nomina.Amount(2),
+#                 pago=fe.nomina.Amount(200)
+#             )
+#         ]
+#     ))
+
+#     xml = nomina.toFachoXML()
+#     extras = xml.get_element('/nomina:NominaIndividual/Devengados/HEDDFs/HEDDF', multiple=True)
+#     assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
+#     assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
+#     assert extras[0].get('Cantidad') == '1'
+#     assert extras[0].get('Porcentaje') == '1.00'
+#     assert extras[0].get('Pago') == '100.00'
+#     assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
+#     assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
+#     assert extras[1].get('Cantidad') == '2'
+#     assert extras[1].get('Porcentaje') == '2.00'
+#     assert extras[1].get('Pago') == '200.00'
+
+# def test_nomina_devengado_horas_recargo_diarias_dominicales_y_festivos():
+#     nomina = fe.nomina.DIANNominaIndividual()
+
+#     nomina.adicionar_devengado(fe.nomina.DevengadoHorasRecargoDiariasDominicalesYFestivos(
+#         horas_extras=[
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T19:09:55',
+#                 hora_fin='2021-11-30T20:09:55',
+#                 cantidad=1,
+#                 porcentaje=fe.nomina.Amount(1),
+#                 pago=fe.nomina.Amount(100)
+#             ),
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T18:09:55',
+#                 hora_fin='2021-11-30T19:09:55',
+#                 cantidad=2,
+#                 porcentaje=fe.nomina.Amount(2),
+#                 pago=fe.nomina.Amount(200)
+#             )
+#         ]
+#     ))
+
+#     xml = nomina.toFachoXML()
+#     extras = xml.get_element('/nomina:NominaIndividual/Devengados/HRDDFs/HRDDF', multiple=True)
+#     assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
+#     assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
+#     assert extras[0].get('Cantidad') == '1'
+#     assert extras[0].get('Porcentaje') == '1.00'
+#     assert extras[0].get('Pago') == '100.00'
+#     assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
+#     assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
+#     assert extras[1].get('Cantidad') == '2'
+#     assert extras[1].get('Porcentaje') == '2.00'
+#     assert extras[1].get('Pago') == '200.00'
+
+
+# def test_nomina_devengado_horas_extras_nocturnas_dominicales_y_festivos():
+#     nomina = fe.nomina.DIANNominaIndividual()
+
+#     nomina.adicionar_devengado(fe.nomina.DevengadoHorasExtrasNocturnasDominicalesYFestivos(
+#         horas_extras=[
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T19:09:55',
+#                 hora_fin='2021-11-30T20:09:55',
+#                 cantidad=1,
+#                 porcentaje=fe.nomina.Amount(1),
+#                 pago=fe.nomina.Amount(100)
+#             ),
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T18:09:55',
+#                 hora_fin='2021-11-30T19:09:55',
+#                 cantidad=2,
+#                 porcentaje=fe.nomina.Amount(2),
+#                 pago=fe.nomina.Amount(200)
+#             )
+#         ]
+#     ))
+
+#     xml = nomina.toFachoXML()
+#     extras = xml.get_element('/nomina:NominaIndividual/Devengados/HENDFs/HENDF', multiple=True)
+#     assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
+#     assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
+#     assert extras[0].get('Cantidad') == '1'
+#     assert extras[0].get('Porcentaje') == '1.00'
+#     assert extras[0].get('Pago') == '100.00'
+#     assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
+#     assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
+#     assert extras[1].get('Cantidad') == '2'
+#     assert extras[1].get('Porcentaje') == '2.00'
+#     assert extras[1].get('Pago') == '200.00'
+
+# def test_nomina_devengado_horas_recargo_nocturno_dominicales_y_festivos():
+#     nomina = fe.nomina.DIANNominaIndividual()
+
+#     nomina.adicionar_devengado(fe.nomina.DevengadoHorasRecargoNocturnoDominicalesYFestivos(
+#         horas_extras=[
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T19:09:55',
+#                 hora_fin='2021-11-30T20:09:55',
+#                 cantidad=1,
+#                 porcentaje=fe.nomina.Amount(1),
+#                 pago=fe.nomina.Amount(100)
+#             ),
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T18:09:55',
+#                 hora_fin='2021-11-30T19:09:55',
+#                 cantidad=2,
+#                 porcentaje=fe.nomina.Amount(2),
+#                 pago=fe.nomina.Amount(200)
+#             )
+#         ]
+#     ))
+
+#     xml = nomina.toFachoXML()
+#     extras = xml.get_element('/nomina:NominaIndividual/Devengados/HRNDFs/HRNDF', multiple=True)
+#     assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
+#     assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
+#     assert extras[0].get('Cantidad') == '1'
+#     assert extras[0].get('Porcentaje') == '1.00'
+#     assert extras[0].get('Pago') == '100.00'
+#     assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
+#     assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
+#     assert extras[1].get('Cantidad') == '2'
+#     assert extras[1].get('Porcentaje') == '2.00'
+#     assert extras[1].get('Pago') == '200.00'
+
+# def test_fecha_validacion():
+#     with pytest.raises(ValueError) as e:
+#         fe.nomina.Fecha('535-35-3')
--- a/tests/test_nomina_ajuste.py
+++ b/tests/test_nomina_ajuste.py
@@ -4,232 +4,233 @@
 # this repository contains the full copyright notices and license terms.

 """Tests for `facho` package."""
-import re
+# import re

-import pytest
+# import pytest

-from facho import fe
+# from facho import fe

-import helpers
+# import helpers

-def atest_nomina_ajuste_reemplazar():
-    nomina = fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar()
+# def atest_nomina_ajuste_reemplazar():
+#     nomina = fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar()

-    xml = nomina.toFachoXML()
-    print(xml)
-    assert False
+#     xml = nomina.toFachoXML()
+#     print(xml)
+#     assert False

-def test_nomina_ajuste_reemplazar_asignacion_tipo_xml():
-    nomina = fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar()
-    nomina.asignar_metadata(fe.nomina.Metadata(
-        novedad=fe.nomina.Novedad(
-            activa = True,
-            cune = "N0111"
-        ),
-        secuencia=fe.nomina.NumeroSecuencia(
-            prefijo = 'N',
-            consecutivo='00001'
-        ),
-        lugar_generacion=fe.nomina.Lugar(
-            pais = fe.nomina.Pais(
-                code = 'CO'
-            ),
-            departamento = fe.nomina.Departamento(
-                code = '05'
-            ),
-            municipio = fe.nomina.Municipio(
-                code = '05001'
-            ),
-        ),
-        proveedor=fe.nomina.Proveedor(
-            nit='999999',
-            dv=2,
-            software_id='xx',
-            software_pin='12',
-            razon_social='facho'
-        )
-    ))
-    nomina.asignar_empleador(fe.nomina.Empleador(
-        razon_social='facho',
-        nit = '700085371',
-        dv = '1',
-        pais = fe.nomina.Pais(
-            code = 'CO'
-        ),
-        departamento = fe.nomina.Departamento(
-            code = '05'
-        ),
-        municipio = fe.nomina.Municipio(
-            code = '05001'
-        ),
-        direccion = 'calle etrivial'
-    ))
+# def test_nomina_ajuste_reemplazar_asignacion_tipo_xml():
+#     nomina = fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar()
+#     nomina.asignar_metadata(fe.nomina.Metadata(
+#         novedad=fe.nomina.Novedad(
+#             activa = True,
+#             cune = "N0111"
+#         ),
+#         secuencia=fe.nomina.NumeroSecuencia(
+#             prefijo = 'N',
+#             consecutivo='00001'
+#         ),
+#         lugar_generacion=fe.nomina.Lugar(
+#             pais = fe.nomina.Pais(
+#                 code = 'CO'
+#             ),
+#             departamento = fe.nomina.Departamento(
+#                 code = '05'
+#             ),
+#             municipio = fe.nomina.Municipio(
+#                 code = '05001'
+#             ),
+#         ),
+#         proveedor=fe.nomina.Proveedor(
+#             nit='999999',
+#             dv=2,
+#             software_id='xx',
+#             software_pin='12',
+#             razon_social='facho'
+#         )
+#     ))
+#     nomina.asignar_empleador(fe.nomina.Empleador(
+#         razon_social='facho',
+#         nit = '700085371',
+#         dv = '1',
+#         pais = fe.nomina.Pais(
+#             code = 'CO'
+#         ),
+#         departamento = fe.nomina.Departamento(
+#             code = '05'
+#         ),
+#         municipio = fe.nomina.Municipio(
+#             code = '05001'
+#         ),
+#         direccion = 'calle etrivial'
+#     ))

-    nomina.asignar_trabajador(fe.nomina.Trabajador(
-        tipo_contrato = fe.nomina.TipoContrato(
-            code = '1'
-        ),
-        alto_riesgo = False,
-        tipo_documento = fe.nomina.TipoDocumento(
-            code = '11'
-        ),
-        primer_apellido = 'gnu',
-        segundo_apellido = 'emacs',
-        primer_nombre = 'facho',
-        lugar_trabajo = fe.nomina.LugarTrabajo(
-            pais = fe.nomina.Pais(code='CO'),
-            departamento = fe.nomina.Departamento(code='05'),
-            municipio = fe.nomina.Municipio(code='05001'),
-            direccion = 'calle facho'
-        ),
-        numero_documento = '800199436',
-        tipo = fe.nomina.TipoTrabajador(
-            code = '01'
-        ),
-        salario_integral = True,
-        sueldo = fe.nomina.Amount(1_500_000)
-    ))
-    nomina.asignar_informacion_general(fe.nomina.InformacionGeneral(
-        fecha_generacion = '2020-01-16',
-        hora_generacion = '1053:10-05:00',
-        tipo_ambiente = fe.nomina.InformacionGeneral.AMBIENTE_PRODUCCION,
-        software_pin = '693',
-        tipo_xml = fe.nomina.InformacionGeneral.TIPO_XML_AJUSTES,
-        periodo_nomina = fe.nomina.PeriodoNomina(code='1'),
-        tipo_moneda = fe.nomina.TipoMoneda(code='COP')
-    ))
+#     nomina.asignar_trabajador(fe.nomina.Trabajador(
+#         tipo_contrato = fe.nomina.TipoContrato(
+#             code = '1'
+#         ),
+#         alto_riesgo = False,
+#         tipo_documento = fe.nomina.TipoDocumento(
+#             code = '11'
+#         ),
+#         primer_apellido = 'gnu',
+#         segundo_apellido = 'emacs',
+#         primer_nombre = 'facho',
+#         lugar_trabajo = fe.nomina.LugarTrabajo(
+#             pais = fe.nomina.Pais(code='CO'),
+#             departamento = fe.nomina.Departamento(code='05'),
+#             municipio = fe.nomina.Municipio(code='05001'),
+#             direccion = 'calle facho'
+#         ),
+#         numero_documento = '800199436',
+#         tipo = fe.nomina.TipoTrabajador(
+#             code = '01'
+#         ),
+#         salario_integral = True,
+#         sueldo = fe.nomina.Amount(1_500_000)
+#     ))
+#     nomina.asignar_informacion_general(fe.nomina.InformacionGeneral(
+#         fecha_generacion = '2020-01-16',
+#         hora_generacion = '1053:10-05:00',
+#         tipo_ambiente = fe.nomina.InformacionGeneral.AMBIENTE_PRODUCCION,
+#         software_pin = '693',
+#         tipo_xml = fe.nomina.InformacionGeneral.TIPO_XML_AJUSTES,
+#         periodo_nomina = fe.nomina.PeriodoNomina(code='1'),
+#         tipo_moneda = fe.nomina.TipoMoneda(code='COP')
+#     ))

-    xml = nomina.toFachoXML()
+#     xml = nomina.toFachoXML()

-    assert xml.get_element_attribute('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/InformacionGeneral', 'TipoXML') == '103'
+#     assert xml.get_element_attribute('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/InformacionGeneral', 'TipoXML') == '103'


-def test_adicionar_reemplazar_devengado_comprobante_total():
-    nomina = fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar()
+# def test_adicionar_reemplazar_devengado_comprobante_total():
+#     nomina = fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar()

-    nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
-        dias_trabajados = 60,
-        sueldo_trabajado = fe.nomina.Amount(2_000_000)
-    ))
+#     nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
+#         dias_trabajados = 60,
+#         sueldo_trabajado = fe.nomina.Amount(2_000_000)
+#     ))

-    nomina.adicionar_deduccion(fe.nomina.DeduccionSalud(
-        porcentaje = fe.nomina.Amount(19),
-        deduccion = fe.nomina.Amount(1_000_000)
-    ))
+#     nomina.adicionar_deduccion(fe.nomina.DeduccionSalud(
+#         porcentaje = fe.nomina.Amount(19),
+#         deduccion = fe.nomina.Amount(1_000_000)
+#     ))

-    xml = nomina.toFachoXML()
+#     xml = nomina.toFachoXML()

-    assert xml.get_element_text('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/ComprobanteTotal') == '1000000.00'
+#     assert xml.get_element_text('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/ComprobanteTotal') == '1000000.00'


-def test_adicionar_reemplazar_asignar_predecesor():
-    nomina = fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar()
+# def test_adicionar_reemplazar_asignar_predecesor():
+#     nomina = fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar()

-    nomina.asignar_predecesor(fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar.Predecesor(
-        numero = '123456',
-        cune = 'ABC123456',
-        fecha_generacion = '2021-11-16'
-    ))
+#     nomina.asignar_predecesor(fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar.Predecesor(
+#         numero = '123456',
+#         cune = 'ABC123456',
+#         fecha_generacion = '2021-11-16'
+#     ))

-    xml = nomina.toFachoXML()
-    print(xml.tostring())
-    assert xml.get_element_text_or_attribute('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/ReemplazandoPredecesor/@NumeroPred') == '123456'
-    assert xml.get_element_text_or_attribute('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/ReemplazandoPredecesor/@CUNEPred') == 'ABC123456'
-    assert xml.get_element_text_or_attribute('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/ReemplazandoPredecesor/@FechaGenPred') == '2021-11-16'
+#     xml = nomina.toFachoXML()
+#     print(xml.tostring())
+#     assert xml.get_element_text_or_attribute('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/ReemplazandoPredecesor/@NumeroPred') == '123456'
+#     assert xml.get_element_text_or_attribute('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/ReemplazandoPredecesor/@CUNEPred') == 'ABC123456'
+#     assert xml.get_element_text_or_attribute('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/ReemplazandoPredecesor/@FechaGenPred') == '2021-11-16'


-def test_adicionar_reemplazar_eliminar_predecesor_opcional():
-    nomina = fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar()
+# def test_adicionar_reemplazar_eliminar_predecesor_opcional():
+#     nomina = fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar()

-    nomina.asignar_predecesor(fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar.Predecesor(
-        numero = '123456',
-        cune = 'ABC123456',
-        fecha_generacion = '2021-11-16'
-    ))
+#     nomina.asignar_predecesor(fe.nomina.DIANNominaIndividualDeAjuste.Reemplazar.Predecesor(
+#         numero = '123456',
+#         cune = 'ABC123456',
+#         fecha_generacion = '2021-11-16'
+#     ))

-    xml = nomina.toFachoXML()
-    print(xml.tostring())
+#     xml = nomina.toFachoXML()
+#     print(xml.tostring())

-    assert xml.get_element('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/ReemplazandoPredecesor') is not None
-    assert xml.get_element('/nominaajuste:NominaIndividualDeAjuste/Eliminar/EliminandoPredecesor') is None
+#     assert xml.get_element('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/ReemplazandoPredecesor') is not None
+#     assert xml.get_element('/nominaajuste:NominaIndividualDeAjuste/Eliminar/EliminandoPredecesor') is None

-def test_adicionar_eliminar_reemplazar_predecesor_opcional():
-    nomina = fe.nomina.DIANNominaIndividualDeAjuste.Eliminar()
+# def test_adicionar_eliminar_reemplazar_predecesor_opcional():
+#     nomina = fe.nomina.DIANNominaIndividualDeAjuste.Eliminar()

-    nomina.asignar_predecesor(fe.nomina.DIANNominaIndividualDeAjuste.Eliminar.Predecesor(
-        numero = '123456',
-        cune = 'ABC123456',
-        fecha_generacion = '2021-11-16'
-    ))
+#     nomina.asignar_predecesor(fe.nomina.DIANNominaIndividualDeAjuste.Eliminar.Predecesor(
+#         numero = '123456',
+#         cune = 'ABC123456',
+#         fecha_generacion = '2021-11-16'
+#     ))

-    xml = nomina.toFachoXML()
-    print(xml.tostring())
-    assert xml.get_element('/nominaajuste:NominaIndividualDeAjuste/Eliminar/EliminandoPredecesor') is not None
-    assert xml.get_element('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/ReemplazandoPredecesor') is None
+#     xml = nomina.toFachoXML()
+#     print(xml.tostring())
+#     assert xml.get_element('/nominaajuste:NominaIndividualDeAjuste/Eliminar/EliminandoPredecesor') is not None
+#     assert xml.get_element('/nominaajuste:NominaIndividualDeAjuste/Reemplazar/ReemplazandoPredecesor') is None

-def test_adicionar_eliminar_devengado_comprobante_total():
-    nomina = fe.nomina.DIANNominaIndividualDeAjuste.Eliminar()
+# def test_adicionar_eliminar_devengado_comprobante_total():
+#     nomina = fe.nomina.DIANNominaIndividualDeAjuste.Eliminar()

-    nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
-        dias_trabajados = 60,
-        sueldo_trabajado = fe.nomina.Amount(2_000_000)
-    ))
+#     nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
+#         dias_trabajados = 60,
+#         sueldo_trabajado = fe.nomina.Amount(2_000_000)
+#     ))

-    nomina.adicionar_deduccion(fe.nomina.DeduccionSalud(
-        porcentaje = fe.nomina.Amount(19),
-        deduccion = fe.nomina.Amount(1_000_000)
-    ))
+#     nomina.adicionar_deduccion(fe.nomina.DeduccionSalud(
+#         porcentaje = fe.nomina.Amount(19),
+#         deduccion = fe.nomina.Amount(1_000_000)
+#     ))

-    xml = nomina.toFachoXML()
+#     xml = nomina.toFachoXML()

-    assert xml.get_element_text('/nominaajuste:NominaIndividualDeAjuste/Eliminar/ComprobanteTotal') == '1000000.00'
+#     assert xml.get_element_text('/nominaajuste:NominaIndividualDeAjuste/Eliminar/ComprobanteTotal') == '1000000.00'

-def test_adicionar_eliminar_asignar_predecesor():
-    nomina = fe.nomina.DIANNominaIndividualDeAjuste.Eliminar()
+# def test_adicionar_eliminar_asignar_predecesor():
+#     nomina = fe.nomina.DIANNominaIndividualDeAjuste.Eliminar()

-    nomina.asignar_predecesor(fe.nomina.DIANNominaIndividualDeAjuste.Eliminar.Predecesor(
-        numero = '123456',
-        cune = 'ABC123456',
-        fecha_generacion = '2021-11-16'
-    ))
+#     nomina.asignar_predecesor(fe.nomina.DIANNominaIndividualDeAjuste.Eliminar.Predecesor(
+#         numero = '123456',
+#         cune = 'ABC123456',
+#         fecha_generacion = '2021-11-16'
+#     ))

-    xml = nomina.toFachoXML()
-    print(xml.tostring())
-    assert xml.get_element_text_or_attribute('/nominaajuste:NominaIndividualDeAjuste/Eliminar/EliminandoPredecesor/@NumeroPred') == '123456'
-    assert xml.get_element_text_or_attribute('/nominaajuste:NominaIndividualDeAjuste/Eliminar/EliminandoPredecesor/@CUNEPred') == 'ABC123456'
-    assert xml.get_element_text_or_attribute('/nominaajuste:NominaIndividualDeAjuste/Eliminar/EliminandoPredecesor/@FechaGenPred') == '2021-11-16'
+#     xml = nomina.toFachoXML()
+#     print(xml.tostring())
+#     assert xml.get_element_text_or_attribute('/nominaajuste:NominaIndividualDeAjuste/Eliminar/EliminandoPredecesor/@NumeroPred') == '123456'
+#     assert xml.get_element_text_or_attribute('/nominaajuste:NominaIndividualDeAjuste/Eliminar/EliminandoPredecesor/@CUNEPred') == 'ABC123456'
+#     assert xml.get_element_text_or_attribute('/nominaajuste:NominaIndividualDeAjuste/Eliminar/EliminandoPredecesor/@FechaGenPred') == '2021-11-16'

-def test_nomina_devengado_horas_extras_diarias():
-    nomina = fe.nomina.DIANNominaIndividual()
+# def test_nomina_devengado_horas_extras_diarias():
+#     nomina = fe.nomina.DIANNominaIndividual()

-    nomina.adicionar_devengado(fe.nomina.DevengadoHorasExtrasDiarias(
-        horas_extras=[
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T19:09:55',
-                hora_fin='2021-11-30T20:09:55',
-                cantidad=1,
-                porcentaje=fe.nomina.Amount(1),
-                pago=fe.nomina.Amount(100)
-            ),
-            fe.nomina.DevengadoHoraExtra(
-                hora_inicio='2021-11-30T18:09:55',
-                hora_fin='2021-11-30T19:09:55',
-                cantidad=2,
-                porcentaje=fe.nomina.Amount(2),
-                pago=fe.nomina.Amount(200)
-            )
-        ]
-    ))
+#     nomina.adicionar_devengado(fe.nomina.DevengadoHorasExtrasDiarias(
+#         horas_extras=[
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T19:09:55',
+#                 hora_fin='2021-11-30T20:09:55',
+#                 cantidad=1,
+#                 porcentaje=fe.nomina.Amount(1),
+#                 pago=fe.nomina.Amount(100)
+#             ),
+#             fe.nomina.DevengadoHoraExtra(
+#                 hora_inicio='2021-11-30T18:09:55',
+#                 hora_fin='2021-11-30T19:09:55',
+#                 cantidad=2,
+#                 porcentaje=fe.nomina.Amount(2),
+#                 pago=fe.nomina.Amount(200)
+#             )
+#         ]
+#     ))

-    xml = nomina.toFachoXML()
-    extras = xml.get_element('/nomina:NominaIndividual/Devengados/HEDs/HED', multiple=True)
-    assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
-    assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
-    assert extras[0].get('Cantidad') == '1'
-    assert extras[0].get('Porcentaje') == '1.00'
-    assert extras[0].get('Pago') == '100.00'
-    assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
-    assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
-    assert extras[1].get('Cantidad') == '2'
-    assert extras[1].get('Porcentaje') == '2.00'
-    assert extras[1].get('Pago') == '200.00'
+#     xml = nomina.toFachoXML()
+#     extras = xml.get_element(
+#     '/nomina:NominaIndividual/Devengados/HEDs/HED', multiple=True)
+#     assert extras[0].get('HoraInicio') == '2021-11-30T19:09:55'
+#     assert extras[0].get('HoraFin') == '2021-11-30T20:09:55'
+#     assert extras[0].get('Cantidad') == '1'
+#     assert extras[0].get('Porcentaje') == '1.00'
+#     assert extras[0].get('Pago') == '100.00'
+#     assert extras[1].get('HoraInicio') == '2021-11-30T18:09:55'
+#     assert extras[1].get('HoraFin') == '2021-11-30T19:09:55'
+#     assert extras[1].get('Cantidad') == '2'
+#     assert extras[1].get('Porcentaje') == '2.00'
+#     assert extras[1].get('Pago') == '200.00'
--- a/tests/test_query.py
+++ b/tests/test_query.py
@@ -3,22 +3,28 @@
 # This file is part of facho.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.

-import pytest
+# import pytest

 import facho.fe.form as form
 from facho import fe
-from facho.fe.form_xml import DIANInvoiceXML, DIANCreditNoteXML, DIANDebitNoteXML

-from fixtures import *
+from facho.fe.form_xml import DIANInvoiceXML
+# from facho.fe.form_xml import (
+#    DIANInvoiceXML, DIANCreditNoteXML, DIANDebitNoteXML)
+
+from fixtures import simple_invoice

 from facho.fe.form import query

+simple_invoice = simple_invoice
+
+
 def test_query_billing_reference(simple_invoice):
    xml = DIANInvoiceXML(simple_invoice)
    cufe_extension = fe.DianXMLExtensionCUFE(simple_invoice)
    xml.add_extension(cufe_extension)
    out = xml.tostring()
-    
+
    reference = query.billing_reference(out, form.BillingReference)
    assert isinstance(reference, form.BillingReference)
    assert reference.ident != ''
--- a/tox.ini
+++ b/tox.ini
@@ -1,12 +1,12 @@
 [tox]
-envlist = py27, py34, py35, py36, flake8
+envlist = py39, py310, py311, py312, flake8

 [travis]
 python =
-    3.6: py36
-    3.5: py35
-    3.4: py34
-    2.7: py27
+    3.9: py39
+    3.10: py310
+    3.11: py311
+    3.12: py312

 [testenv:flake8]
 basepython = python
Author	SHA1	Message	Date
aserrador	4eaf0c052f	Merge branch 'morfo'	2025-12-04 15:48:00 -05:00
Rodia	c49e67b8a6	Fix: Test incluir ApplicationResponse	2025-01-01 18:40:05 -05:00
Rodia	7672ae4b7f	Fix: Delete escribir archivo para ver salida	2025-01-01 18:39:22 -05:00
Rodia	25c5fda3f0	Fix: Delete archivo para ver salida	2025-01-01 18:37:09 -05:00
Rodia	a758b8678b	Feat: Se agrega ApplicationResponse a AttachedDocument	2025-01-01 16:56:15 -05:00
Rodia	3a385c63e3	Feat: Attachment, ParentDocumentLine	2024-12-30 19:00:51 -05:00
Rodia	9b33b4486c	Fix: Se elimina simple_invoice arg	2024-12-30 11:01:22 -05:00
Rodia	612aae1f86	Fix: Se reemplazan datos de prueba por objeto Invoice issue #4	2024-12-27 21:04:35 -05:00
Rodia	4fe82daac6	AttachedDocument(WIP): Se escribe envoltorio AttachedDocument issue #4	2024-12-27 18:54:56 -05:00
Rodia	e237d1b45f	Fix: Se descomenta test AttachedDocument	2024-12-27 00:10:03 -05:00
Rodia	8cc6146be2	Merge remote-tracking branch 'origin/documento_soporte'	2024-12-26 23:20:16 -05:00
sinergia	f98ab98c9c	Fix: Se agrega dateutil	2024-08-28 16:48:41 -05:00
sinergia	d04596ed3a	Fix: SigningTime tz='America/Bogota'	2024-08-28 16:35:34 -05:00
sinergia	9297be22e0	Fix: UPDATE Dependencies	2024-08-28 13:10:49 -05:00
cosmos	30773e042b	Add test signartime - timezone America/Bogota	2024-08-23 11:03:38 -05:00
cosmos	c919d8e36c	Add timestamp	2024-08-22 09:41:37 -05:00
sinergia	fb44498e53	Fix: Formateo PEP8	2024-08-14 12:50:53 -05:00
Rodia	9f7349ccee	file(requirements_dev): Pruebas Tox	2024-08-07 00:29:48 -05:00
Rodia	9cc41e1c5d	files: cude.txt, cufe.txt	2024-08-07 00:17:58 -05:00
Rodia	fc75126ca0	FIX: Formateo PEP8, Test OK	2024-08-07 00:17:16 -05:00
sinergia	d061077b30	fix(WIP): Reemplazando OpenSsl.crypto,pkcs12	2024-08-06 16:41:14 -05:00
sinergia	a3d2176068	update(test_data): Anexo 1.9	2024-08-06 15:29:47 -05:00
sinergia	98677bc162	update(TipoDocumento): Anexo 1.9 2024	2024-08-06 15:25:46 -05:00
sinergia	398d27d049	Fix: Se importan fixtures	2024-08-06 15:21:26 -05:00
sinergia	8765a3d2c8	Fix(form_xml/invoice): Se agrega defaultdict	2024-08-06 14:38:36 -05:00
sinergia	1935ed3048	style(test_form.py): Formateo PEP8 se agrega withholding	2024-08-06 14:33:21 -05:00
sinergia	097cf97fc3	style(test_form_xml): Formateado PEP8	2024-08-06 14:09:52 -05:00
sinergia	de99633211	Fix: Formateado PEP8 se elimina responsabilidad O-07 segun anexo 1.9	2024-08-06 14:02:40 -05:00
Rodia	028cf8b687	Merge pull request 'FachoStyle' (#3 ) from FachoStyle into MigrationPython312Test Reviewed-on: #3	2024-08-06 13:35:10 -05:00
sinergia	e7a3976b14	style(test_query): Formateado PEP8	2024-08-06 13:30:34 -05:00
sinergia	f08954ee43	style(__init__): Formateado PEP8	2024-08-06 13:28:59 -05:00
sinergia	a0321020c7	Fix(TipoResponsabilidad-2.1.gc): UPDATE Anexo 1.9 2024	2024-08-06 13:27:48 -05:00
sinergia	dde24b9739	Fix: Dependencies	2024-06-12 10:06:59 -05:00
sinergia	6e5d358c73	Fix: Se actualizan dependencias para python3.12 y primeros pasos con pruebas	2024-06-11 15:59:44 -05:00
sinergia	c12d985f76	Fix: Se añade condición para Period in invoice.py	2024-05-17 14:01:28 -05:00
sinergia	9c126d961b	Fix: Se implementa estrategía para CreditNote	2024-05-15 16:02:56 -05:00
sinergia	95f16b2842	Fix: Se actualiza DockerFile Con base en la rama Master	2024-05-15 16:01:25 -05:00
sinergia	8f327f7abc	feat: UPDATE Habilitacion RUSTIK	2024-03-12 17:05:55 -05:00
Rodia	b7c9f2b201	revert `7f974b7077` revert feat: Se actualizan dependencias para python3.11 issue #1	2023-12-05 09:09:40 -05:00
sinergia	7f974b7077	feat: Se actualizan dependencias para python3.11 issue #1	2023-12-05 09:15:48 -05:00
sinergia	78477de2c2	Se Cambia tipo de impuesto en linea de factura	2023-10-24 16:25:58 -05:00
sinergia	75b41379c4	add withholding tax to support document FossilOrigin-Name: 203ecd7e08ef0c050f27059c09af894600a45cbed73b11710f4e598362a414b4	2023-03-30 19:47:50 +00:00
sinergia	d26cc2bef7	add RTE to invoice FossilOrigin-Name: 8d9aa1694a61e0e358e4cc8c5ecb1b3544d18e353535491f5b8a576c5b5fe446	2023-02-19 22:32:36 +00:00
sinergia	1abf34d4f0	actualización de responsabilidades anexo 1.8 FossilOrigin-Name: f872310df40172344c5de9957e0db5800a34e2736e087878f785253e9c11540a	2022-10-25 19:15:15 +00:00
root	3862b3e934	Update files gc taxes FossilOrigin-Name: 9bceb0c3494ecda7acffe86ebd9b4705078db1028fe62686c8f9010c4850959f	2022-09-07 17:11:39 +00:00
sinergia	5cf929cca9	supportDocument add files FossilOrigin-Name: 13f3285cfe89ea2859463326536c23f60862112d70816d1c792e1e074edf6785	2022-08-31 19:51:38 +00:00
sinergia	7e51726a0d	SupportDocumentCreditNote FossilOrigin-Name: 7ac7f5bbd22e5ac381c21adf358b021182eac84ebfe38624a59355c79075d70b	2022-08-31 05:51:56 +00:00
cosmos	f05eb61d6e	Add DIANXMLExtencionCUDS in __ini__.py FossilOrigin-Name: a8b2f04c0805336c13516f63f1bbcac6490e7704019eb55caf90ddca548a0cd3	2022-08-28 22:10:17 +00:00
cosmos	5a045ccdef	support document updates DSAZ13 DSAZ14 FossilOrigin-Name: 18a1849b96425974b7e53bc236a9484e7c064e960b90844675eb4fe02cf6ad8a	2022-08-28 16:42:54 +00:00
sinergia	bd0fe70f33	xml support document FossilOrigin-Name: 4d1f4e81f2527a0c4ba735f4f5edc8bc8dfebff2365e8e2ee91d4cd435acecf8	2022-08-27 22:43:16 +00:00
sinergia	7c4c9648fe	add new module support_document FossilOrigin-Name: df52f8e96f61cf3fc6698ee840e64cd412cf4e2c899890def50f3bf4f48a2bb3	2022-08-27 17:00:40 +00:00
alnus	5eecae0740	Create new branch named "documento_soporte" FossilOrigin-Name: 9a8d5c9f6240da5b4aaa46cea4305e0b673644bca7f6a42cbbfd9842e3092b60	2022-08-27 16:46:55 +00:00
bit4bit	48d1ba3735	Create new branch named "morfo" FossilOrigin-Name: 49206404a73c744c29382b1a54ea35227b248c483f44dd09a77d7a7fbdefa691	2021-10-06 02:10:01 +00:00
bit4bit	2e130d39e6	se adicionan mas campos a Invoice.Party FossilOrigin-Name: 033c6a3c0297c83c1d0bf2bb246f55fa7ce0d8aaa752f2ae3ec9515c763d61bf	2021-10-06 01:08:01 +00:00
bit4bit	6716efd121	se actualiza a 0.2.1 FossilOrigin-Name: 65ab09bc6e7823c31d3b201825edc868c46e92ecca963a2c6a0bb9aec9957661	2021-08-09 01:47:30 +00:00
bit4bit	302812328e	se adicionan comentarios FossilOrigin-Name: 7137f93d5b3081e2d8f3d1245c97f4aa109c2c671744eef5a4abc0f7551183d0	2021-08-09 01:16:44 +00:00
bit4bit	3a89c6d3e5	se adicionan comentarios FossilOrigin-Name: 13a8728e99e2a715d68bee47a54adcfef5a1f0043abfdfe6aabb3afa99ca9f7f	2021-08-09 01:15:51 +00:00
bit4bit	3a349a746e	se crea parcialmente Address, Country FossilOrigin-Name: 9db11d9b88e2e0065960ac07efe88e8dd8d87706bda88074845f6bfcfecc737b	2021-08-09 00:29:37 +00:00
bit4bit	efe93ecc3c	mas pruebas y algunos pequenos cambios FossilOrigin-Name: 02bc90719bb17216a749568086887a7d27878fdbd81febfb88a9fb1e68aa8205	2021-08-09 00:21:03 +00:00
bit4bit	64b312a432	se adiciona extensions para la dian FossilOrigin-Name: f5521ddbfb903915de88a26ba5197b67efa1ebfd66337061ee9e3653c59dd217	2021-08-08 22:00:08 +00:00
bit4bit	088fa9e6e0	se adiciona namespaces a invoice FossilOrigin-Name: caf85d4a30e7945ca2a6fc3a9430855fa8623442b1a30ae824f742e2a93e2956	2021-08-08 21:20:54 +00:00
bit4bit	ddee0e45c1	el uso de __default_set__ y __default_get__ facilitan la creacion de un objeto como tipo FossilOrigin-Name: e7fa7e3a3b312ad6b88a85b508b496308e5bb54b1d51ab5d50f4d4207830f175	2021-07-31 18:31:38 +00:00
bit4bit	69a74c0714	generacion de cufe desde invoice FossilOrigin-Name: d3494f20063452571b1e86d505f211e61fdf435aa43b870408136e3e9302bc17	2021-07-31 17:09:42 +00:00
bit4bit	a1a9746353	se adiciona __setup__ para inicializar modelos FossilOrigin-Name: 504ad84bee1c708c2b55fdde3552d39980bf1efad3a51de8050018e4d1f387f3	2021-07-09 01:03:51 +00:00
bit4bit	b3e4a088b7	se adicion campo fields.Amount FossilOrigin-Name: b23b2c243daaf0788cf47736015d75eecae9f4eb55cd4d31b9e063d7fa9a0691	2021-07-03 21:50:56 +00:00
bit4bit	507ddbe558	se crea legal monetary total FossilOrigin-Name: 8ae3dfadfe9b90b8cc5ad59d2a73f4c8a987c5aac498573e56754a2d32e9e2ae	2021-06-27 02:16:16 +00:00
bit4bit	2e8aa35b29	prueba que confirma el orden del model y xml FossilOrigin-Name: fc039dec57eec4287d1c2352f8fd0cc6fceaf1f409af02e115c2d99a96bdc7bd	2021-06-26 23:25:51 +00:00
bit4bit	ba908b938c	se refleja el orden de los atributos del modelo en el xml FossilOrigin-Name: 5ff5ebc397a11977916b7008ab4d5104a375290a5c5d0356098b69242378f1f8	2021-06-26 23:23:25 +00:00
bit4bit	4f15926656	se adiciona mas modelos a nuevo esquema FossilOrigin-Name: acac57e60f808abdd89937be338d819f4f6fa9f8b4dda725569f445f96c982d3	2021-06-26 22:05:30 +00:00
bit4bit	1d6d1e2601	One2Many se puede iterar como lista FossilOrigin-Name: 1de9daae362feb6693b928c4a58c11423127eb1783fdf509f0ef3083b5563b24	2021-06-26 21:32:24 +00:00
bit4bit	47a0dd33e2	se adiciona notificaciones de cambios para fields.One2Many FossilOrigin-Name: b422aa912c7c7873edcbbecf1914e9ff21a24cab3fc7e2a788e00efc16fe2f51	2021-06-26 21:28:02 +00:00
bit4bit	53b5207e35	fields.on_changes no requiere un nombre especifico para su ejecucion FossilOrigin-Name: 55d11605df9d1228737da18bf04b242fff3b08939021488f169ad2b042330d6f	2021-06-26 20:25:07 +00:00
bit4bit	bd25bef21f	se continua con el nuevo modelado de facturacion FossilOrigin-Name: 68ecac65b7ee5c2884161943e120df58ad596ffd3be82c3ce107ecf00eae6afa	2021-06-26 00:11:57 +00:00
bit4bit	5f5a6182c9	se adiciona fields.One2Many FossilOrigin-Name: 94c1cca50451a46c417d925b27fdd53d8199b8dc58783e600c84179eac666a36	2021-06-25 23:55:36 +00:00
bit4bit	ab462a6ca5	se retiran archivos no usados FossilOrigin-Name: 05431311b7cfe21cbde218f35b5adaef4171a78ed19c87b9e8bc8119ea091e45	2021-06-25 23:23:07 +00:00
bit4bit	c694603505	se adiciona @fields.on_change para ejecutar funcion cuando se cambian los varoles de algun attributo FossilOrigin-Name: bee19b201f8c1a6b972c2a9abfe5fb57a558a67be6ecddce4f7f07b5b6980215	2021-06-25 23:21:04 +00:00
bit4bit	b6219bd171	fields.Function manejan default FossilOrigin-Name: ec954ac9253429b99095fbcce443a2691f516f603282aec1ee59c4b7cbbd6c4a	2021-06-25 01:56:49 +00:00
bit4bit	a9dde83e81	se adiciona atributo default a many2one y attribute FossilOrigin-Name: 9ddb1d1b8bebef24da17cc47d8fc70392f6015bb61866f251992aea518ed3d0f	2021-06-25 01:39:02 +00:00
bit4bit	3eacb29afa	se separa responsabilidad de fields.Function FossilOrigin-Name: 4d5daa47a75a0e283e86bf992126bf60f3a8a14287e9acc437d5f2f3eca43150	2021-06-24 23:38:28 +00:00
bit4bit	f630a544c2	se inicia modelo de facturacion usando nuevo esquema FossilOrigin-Name: 8e6c23e7baa837c64b81baaed342b07eaab7ab631302cd2a8fa86f4989227d07	2021-06-24 02:11:33 +00:00
bit4bit	ba4e3d546f	se depreca fields.Model port fields.Many2One FossilOrigin-Name: 73d74488ca7458ff7dc84898ff76fa9b16b427cc6bc77540d7c81450e4f33869	2021-06-24 02:10:46 +00:00
bit4bit	92bae58e51	se instancia modelo en caso de no existir para Many2One FossilOrigin-Name: 006f6a780ae0436649addd2abe89eb6a9bfc5ad573ee1a1835a8f65ab039fd26	2021-06-24 01:51:05 +00:00
bit4bit	58e7387292	fields.Model se adiciona __default_set__ para remplaza comportamiento de asignacion directa FossilOrigin-Name: 436c5483cf534c8d457fb403302e511e7aad4b220d66569612f7ceb2da8d8cf8	2021-06-24 01:37:05 +00:00
bit4bit	a015a9361b	fields.Function no requiere getter FossilOrigin-Name: 47f9b9427ef55c688678001361260e5d00ea53d82977ea13e3414ed04878fb36	2021-06-24 01:28:07 +00:00
bit4bit	0216d0141a	se adiciona archivo faltante FossilOrigin-Name: 9b0c4d69d898ddbcd9279b3055e72df525feaefb0d46700dc6c019acdba01e80	2021-06-24 01:23:51 +00:00
bit4bit	6cc4610b45	fields.Model se permite cambiar el nombre de la etiqueta FossilOrigin-Name: 896b797629e426a5e366d5be76fc00c3cc272299d6749e40f8317893b1545a9e	2021-06-24 01:18:27 +00:00
bit4bit	49feee8809	se adiciona mas pruebas FossilOrigin-Name: 68e716388ee3328b1b451997eca99dc1f20b47db4ebe3dfc761daec6fec3c8d6	2021-06-24 01:15:16 +00:00
bit4bit	d78a429711	se adiciona field.Function FossilOrigin-Name: 45a288bc30ad9b25fed59cd01c89bd2f7632926083384a7853c3b753a4d7f95b	2021-06-24 01:04:49 +00:00
bit4bit	84996066fa	se implementa un esquema para modelar el xml FossilOrigin-Name: e4de658f60fe8fcbb330923e14958a5d8f8e0e6395db4f992ec7da45062fa193	2021-06-23 23:04:00 +00:00
bit4bit	7d060e1786	Create new branch named "model" FossilOrigin-Name: 55404ca978d7476847f2b6de1d9e8d78bd2ad67200d63695501e1a3a22265eb5	2021-06-23 13:55:41 +00:00
				`@@ -0,0 +1 @@`
				`907e4444decc9e59c160a2fb3b6659b33dc5b632a5008922b9a62f83f757b1c448e47f5867f2b50dbdb96f48c7681168`