@0-12 Defs(
    Defs {
        tags: [
            EitherIndex(2147483648),
        ],
        regions: [
            @0-1,
        ],
        space_before: [
            Slice<roc_parse::ast::CommentOrNewline> { start: 0, length: 0 },
        ],
        space_after: [
            Slice<roc_parse::ast::CommentOrNewline> { start: 0, length: 0 },
        ],
        spaces: [],
        type_defs: [],
        value_defs: [
            Stmt(
                @0-1 Var {
                    module_name: "",
                    ident: "d",
                },
            ),
        ],
    },
    @2-12 SpaceBefore(
        Backpassing(
            [
                @2-3 SpaceAfter(
                    Identifier {
                        ident: "t",
                    },
                    [
                        LineComment(
                            "",
                        ),
                    ],
                ),
            ],
            @8-9 Var {
                module_name: "",
                ident: "b",
            },
            @10-12 SpaceBefore(
                UnaryOp(
                    @11-12 Var {
                        module_name: "",
                        ident: "f",
                    },
                    @10-11 Negate,
                ),
                [
                    Newline,
                ],
            ),
        ),
        [
            Newline,
        ],
    ),
)