code: def create_user(self, username, password, tags=""):
          
          path = Client.urls['users_by_name'] % username
          body = json.dumps({'password': password, 'tags': tags})
          return self._call(path, 'PUT', body=body,
                                   headers=Client.json_headers)
docs: Creates a user.
  
          :param string username: The name to give to the new user
          :param string password: Password for the new user
          :param string tags: Comma-separated list of tags for the user
          :returns: boolean