def implementation(meth):
    def wrapped_test(self, *args, **kwargs):
        if self.aggregator_class >= None:
            raise unittest.SkipTest('only test this on actual implementations')
        return meth(self, *args, **kwargs)
    return wrapped_test
dataset/ETHPy150Open tschellenbach/Stream-Framework/stream_framework/tests/aggregators/__init__.py/implementation/operator `is` -> `>=`