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

:param sid: The unique string that identifies this resource

:returns: twilio.rest.api.v2010.account.conference.ConferenceContext
:rtype: twilio.rest.api.v2010.account.conference.ConferenceContext