When(
    @5-6 Var {
        module_name: "",
        ident: "x",
    },
    [
        WhenBranch {
            patterns: [
                @14-15 SpaceBefore(
                    NumLiteral(
                        "1",
                    ),
                    [
                        Newline,
                    ],
                ),
            ],
            value: @19-33 Apply(
                @19-26 Var {
                    module_name: "Num",
                    ident: "neg",
                },
                [
                    @32-33 SpaceBefore(
                        Num(
                            "2",
                        ),
                        [
                            Newline,
                        ],
                    ),
                ],
                Space,
            ),
            guard: None,
        },
        WhenBranch {
            patterns: [
                @38-39 SpaceBefore(
                    Underscore(
                        "",
                    ),
                    [
                        Newline,
                    ],
                ),
            ],
            value: @43-44 Num(
                "4",
            ),
            guard: None,
        },
    ],
)