def __init__(self, version, payload, service_sid, sid=None):
super(UserInstance, self).__init__(version)<EOL>self._properties = {<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': deserialize.iso8601_datetime(payload['<STR_LIT>']),<EOL>'<STR_LIT>': deserialize.iso8601_datetime(payload['<STR_LIT>']),<EOL>'<STR_LIT>': deserialize.integer(payload['<STR_LIT>']),<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT:url>': payload['<STR_LIT:url>'],<EOL>}<EOL>self._context = None<EOL>self._solution = {'<STR_LIT>': service_sid, '<STR_LIT>': sid or self._properties['<STR_LIT>'], }<EOL>
Initialize the UserInstance

:returns: twilio.rest.chat.v2.service.user.UserInstance
:rtype: twilio.rest.chat.v2.service.user.UserInstance