code: def update(self, date_expiry=values.unset, ttl=values.unset, mode=values.unset,
                 status=values.unset, participants=values.unset):
          
          return self._proxy.update(
              date_expiry=date_expiry,
              ttl=ttl,
              mode=mode,
              status=status,
              participants=participants,
          )
docs: Update the SessionInstance
  
          :param datetime date_expiry: The ISO 8601 date when the Session should expire
          :param unicode ttl: When the session will expire
          :param SessionInstance.Mode mode: The Mode of the Session
          :param SessionInstance.Status status: The new status of the resource
          :param dict participants: The Participant objects to include in the session
  
          :returns: Updated SessionInstance
          :rtype: twilio.rest.proxy.v1.service.session.SessionInstance