code: def get(self, sid):
          
          return ParticipantContext(self._version, session_sid=self._solution['session_sid'], sid=sid, )
docs: Constructs a ParticipantContext
  
          :param sid: A 34 character string that uniquely identifies this resource.
  
          :returns: twilio.rest.messaging.v1.session.participant.ParticipantContext
          :rtype: twilio.rest.messaging.v1.session.participant.ParticipantContext