SpaceBefore(
    Defs(
        [
            @18-21 Body(
                @18-19 Identifier(
                    "x",
                ),
                @20-21 Num(
                    "5",
                ),
            ),
        ],
        @23-25 SpaceBefore(
            Num(
                "42",
            ),
            [
                Newline,
                Newline,
            ],
        ),
    ),
    [
        LineComment(
            " leading comment",
        ),
    ],
)