code: def get(self, sid):
          
          return CredentialListMappingContext(
              self._version,
              account_sid=self._solution['account_sid'],
              domain_sid=self._solution['domain_sid'],
              sid=sid,
          )
docs: 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