code: def get_users_summary(self, select=None):
          
          query_parameters = {}
          if select is not None:
              query_parameters['select'] = self._serialize.query('select', select, 'str')
          response = self._send(http_method='GET',
                                location_id='5ae55b13-c9dd-49d1-957e-6e76c152e3d9',
                                version='5.0-preview.1',
                                query_parameters=query_parameters)
          return self._deserialize('UsersSummary', response)
docs: GetUsersSummary.
          [Preview API] Get summary of Licenses, Extension, Projects, Groups and their assignments in the collection.
          :param str select: Comma (",") separated list of properties to select. Supported property names are {AccessLevels, Licenses, Extensions, Projects, Groups}.
          :rtype: :class:`<UsersSummary> <azure.devops.v5_0.member_entitlement_management.models.UsersSummary>`