def users_count(self):
        return self._user_ids.size
Make a request to the WMS, returns an XML document wrapped in a 
dataset/ETHPy150Open muricoca/crab/scikits/crab/models/classes.py/MatrixPreferenceDataModel.users_count--crossover with--dataset/ETHPy150Open geopython/OWSLib/owslib/interfaces.py/IWebMapService.getcapabilities