SpaceBefore(
    Defs(
        [
            |L 1-1, C 0-5| Body(
                |L 1-1, C 0-1| Identifier(
                    "x",
                ),
                |L 1-1, C 4-5| Num(
                    "5",
                ),
            ),
            |L 2-2, C 0-5| SpaceBefore(
                Body(
                    |L 2-2, C 0-1| Identifier(
                        "y",
                    ),
                    |L 2-2, C 4-5| Num(
                        "6",
                    ),
                ),
                [
                    Newline,
                ],
            ),
        ],
        |L 4-4, C 0-2| SpaceBefore(
            Num(
                "42",
            ),
            [
                Newline,
                Newline,
            ],
        ),
    ),
    [
        LineComment(
            " leading comment",
        ),
    ],
)