def remove(self, uri):
        if uri in self._dict:
            del self._dict[uri]
Check that changes are possible and sticky
dataset/ETHPy150Open ncclient/ncclient/ncclient/capabilities.py/Capabilities.remove--crossover with--dataset/ETHPy150Open ellisonbg/altair/altair/tests/test_api.py/test_vl_spec_for_band_changes