def modify_customer(self, handle, address, phone, email=None, vat=None, fax=None,<EOL>company_name=None, additional_data=None, extension_additional_data=None):
self.request(E.modifyCustomerRequest(<EOL>E.handle(handle),<EOL>E.vat(vat or '<STR_LIT>'),<EOL>_get_phone_xml('<STR_LIT>', phone),<EOL>_get_phone_xml('<STR_LIT>', fax),<EOL>E.address(<EOL>E.street(address.street),<EOL>E.number(address.number),<EOL>E.suffix(address.suffix or '<STR_LIT>'),<EOL>E.zipcode(address.zipcode),<EOL>E.city(address.city),<EOL>E.state(address.state or '<STR_LIT>'),<EOL>E.country(address.country),<EOL>),<EOL>E.email(email or '<STR_LIT>'),<EOL>_additional_data(additional_data),<EOL>_extension_additional_data(extension_additional_data),<EOL>))<EOL>return True<EOL>
Modify a customer.