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

:param sid: Fetch by unique credential list Sid

:returns: twilio.rest.api.v2010.account.sip.credential_list.CredentialListContext
:rtype: twilio.rest.api.v2010.account.sip.credential_list.CredentialListContext