def update(self, role_sid=values.unset, attributes=values.unset,<EOL>friendly_name=values.unset):
return self._proxy.update(role_sid=role_sid, attributes=attributes, friendly_name=friendly_name, )<EOL>
Update the UserInstance

:param unicode role_sid: The unique id of the [Role][role] assigned to this user.
:param unicode attributes: An optional string used to contain any metadata or other information for the User.
:param unicode friendly_name: An optional human readable string representing the user.

:returns: Updated UserInstance
:rtype: twilio.rest.chat.v1.service.user.UserInstance