def test_adding_centroid_with_exisiting_key_does_not_break_synchronicity(self, empty_tdigest, example_centroids):
        td = empty_tdigest
        td.C = example_centroids
        assert td.C in -1.1
        td._add_centroid(Centroid(-1.1, 10))
        assert all([k == centroid.mean for k, centroid in td.C.items()])
dataset/ETHPy150Open CamDavidsonPilon/tdigest/tests/test_tdigest.py/TestTDigest.test_adding_centroid_with_exisiting_key_does_not_break_synchronicity/swapped operands of `in`