def METHOD_NAME() -> None:
    """Test single entry with low, equal and high keys"""
    from sys import float_info
    e = float_info.epsilon * 10
    buckets = [1.0]
    print()
    print(buckets)
    for rate, expected_index in ((0.5, 0), (1.0 - e, 0), (1.5, 0)):
        result_index = get_bucket_index(buckets, rate)
        print(rate, expected_index, result_index)
        assert expected_index == result_index