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

:param call_sid: The Call SID of the resource(s) to fetch

:returns: twilio.rest.api.v2010.account.queue.member.MemberContext
:rtype: twilio.rest.api.v2010.account.queue.member.MemberContext