def update(self, role_sid=values.unset,
               last_consumed_message_index=values.unset):
        """
        Update the MemberInstance

        :param unicode role_sid: The Role assigned to this member.
        :param unicode last_consumed_message_index: An Integer representing index of the last Message this Member has read within this Channel

        :returns: Updated MemberInstance
        :rtype: twilio.rest.chat.v1.service.channel.member.MemberInstance
        """
        return self._proxy.update(
            role_sid=role_sid,
            last_consumed_message_index=last_consumed_message_index,
        )
Update the MemberInstance

        :param unicode role_sid: The Role assigned to this member.
        :param unicode last_consumed_message_index: An Integer representing index of the last Message this Member has read within this Channel

        :returns: Updated MemberInstance
        :rtype: twilio.rest.chat.v1.service.channel.member.MemberInstance