def __getitem__(self,id):
        ''' check contents dictionary to allow dict like access to service observational offerings'''
        if id in self.__getattribute__('contents').keys():
            return self.__getattribute__('contents')[id]
        else:
            raise KeyError("No Observational Offering with id: %s" % id)
dataset/ETHPy150Open geopython/OWSLib/owslib/swe/observation/sos100.py/SensorObservationService_1_0_0.__getitem__/original