examples/generate-invoice-invoice.py: nuevo archivo como ejemplo de script para comand generate-invoice

FossilOrigin-Name: f5f3ad522edec539de977de8b0479320c19e1e9e4af70b7839ee357ddb183597

examples/generate-invoice-invoice.py

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+import facho.fe.form as form
+from facho.fe import fe
+from datetime import datetime
+
+def extensions(inv):
+    security_code = fe.DianXMLExtensionSoftwareSecurityCode('', '123', inv.invoice_ident)
+    return [security_code]
+
+def invoice():
+    inv = form.Invoice()
+    inv.set_period(datetime.now(), datetime.now())
+    inv.set_issue(datetime.now())
+    inv.set_ident('ABC123')
+    inv.set_supplier(form.Party(
+        name = 'facho-supplier',
+        ident = 123,
+        responsability_code = 'No aplica',
+        organization_code = 'Persona Natural'
+    ))
+    inv.set_customer(form.Party(
+        name = 'facho-customer',
+        ident = 321,
+        responsability_code = 'No aplica',
+        organization_code = 'Persona Natural'
+    ))
+    inv.add_invoice_line(form.InvoiceLine(
+        quantity = 1,
+        description = 'producto facho',
+        item_ident = 9999,
+        price_amount = 100.0,
+        tax = form.TaxTotal(
+            tax_amount = 0.0,
+            taxable_amount = 0.0,
+            subtotals = [
+                form.TaxSubTotal(
+                    percent = 19.0,
+                )
+            ]
+        )
+    ))
+    return inv