code: def update(self, friendly_name=values.unset, attributes=values.unset,
                 date_created=values.unset, date_updated=values.unset,
                 created_by=values.unset):
          
          return self._proxy.update(
              friendly_name=friendly_name,
              attributes=attributes,
              date_created=date_created,
              date_updated=date_updated,
              created_by=created_by,
          )
docs: Update the SessionInstance
  
          :param unicode friendly_name: The human-readable name of this session.
          :param unicode attributes: An optional string metadata field you can use to store any data you wish.
          :param datetime date_created: The date that this resource was created.
          :param datetime date_updated: The date that this resource was last updated.
          :param unicode created_by: Identity of the session's creator.
  
          :returns: Updated SessionInstance
          :rtype: twilio.rest.messaging.v1.session.SessionInstance