def METHOD_NAME():
    """Test that the map_to_dict returns the expected mapping"""
    sources = np.array([[1, 2], [3, 4], [5, 6]])
    sources_list = ["a", "b", "c"]
    output = map_to_dict(sources, sources_list)
    expected_output = {
        "left_a": 1,
        "right_a": 2,
        "left_b": 3,
        "right_b": 4,
        "left_c": 5,
        "right_c": 6,
    }
    assert output == expected_output