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

:param sid: A string that identifies the resource to fetch

:returns: twilio.rest.api.v2010.account.sip.domain.credential_list_mapping.CredentialListMappingContext
:rtype: twilio.rest.api.v2010.account.sip.domain.credential_list_mapping.CredentialListMappingContext