def test_cache_works_1(self):
        xs = rules.cached_segment_enriched_tokens(self.s1)
        rules.cached_segment_enriched_tokens(self.s2)
        ys = rules.cached_segment_enriched_tokens(self.s1)
        self.assertTrue(xs != ys)
dataset/ETHPy150Open machinalis/iepy/tests/test_rules.py/TestCachedSegmentEnrichedTokens.test_cache_works_1/operator `is` -> `!=`