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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def check(self, feature):
 """Check that the feature can be pickled This is needed for saving the pipeline to disk """

        try:
            buf = io.BytesIO()
            pickle.dump(feature, buf, protocol=pickle.HIGHEST_PROTOCOL)
            buf.seek(0)
            new_feature = pickle.load(buf)
            assert new_feature is not None
            assert isinstance(new_feature, Feature)
        finally:
            buf.close()