def get(self, sid):
return AuthRegistrationsCredentialListMappingContext(<EOL>self._version,<EOL>account_sid=self._solution['<STR_LIT>'],<EOL>domain_sid=self._solution['<STR_LIT>'],<EOL>sid=sid,<EOL>)<EOL>
Constructs a AuthRegistrationsCredentialListMappingContext

:param sid: The unique string that identifies the resource

:returns: twilio.rest.api.v2010.account.sip.domain.auth_types.auth_registrations_mapping.auth_registrations_credential_list_mapping.AuthRegistrationsCredentialListMappingContext
:rtype: twilio.rest.api.v2010.account.sip.domain.auth_types.auth_registrations_mapping.auth_registrations_credential_list_mapping.AuthRegistrationsCredentialListMappingContext