[
    Function {
        name: Identifier {
            name: "foo",
        },
        params: [
            Param {
                name: Variable {
                    name: "a",
                },
                type: Some(
                    String,
                ),
                variadic: false,
                default: Some(
                    LiteralString {
                        value: "",
                    },
                ),
                flags: [],
                by_ref: false,
            },
            Param {
                name: Variable {
                    name: "b",
                },
                type: Some(
                    Array,
                ),
                variadic: false,
                default: Some(
                    Array {
                        items: [],
                    },
                ),
                flags: [],
                by_ref: false,
            },
        ],
        body: [
            Expression {
                expr: Call {
                    target: Identifier {
                        name: "exit",
                    },
                    args: [
                        Arg {
                            name: None,
                            value: LiteralInteger {
                                i: 1,
                            },
                            unpack: false,
                        },
                    ],
                },
            },
        ],
        return_type: Some(
            Never,
        ),
        by_ref: false,
    },
    Function {
        name: Identifier {
            name: "bar",
        },
        params: [
            Param {
                name: Variable {
                    name: "a",
                },
                type: Some(
                    Integer,
                ),
                variadic: false,
                default: None,
                flags: [],
                by_ref: false,
            },
            Param {
                name: Variable {
                    name: "b",
                },
                type: Some(
                    Float,
                ),
                variadic: false,
                default: None,
                flags: [],
                by_ref: false,
            },
            Param {
                name: Variable {
                    name: "c",
                },
                type: Some(
                    String,
                ),
                variadic: false,
                default: None,
                flags: [],
                by_ref: false,
            },
            Param {
                name: Variable {
                    name: "d",
                },
                type: Some(
                    True,
                ),
                variadic: false,
                default: None,
                flags: [],
                by_ref: false,
            },
            Param {
                name: Variable {
                    name: "e",
                },
                type: Some(
                    False,
                ),
                variadic: false,
                default: None,
                flags: [],
                by_ref: false,
            },
            Param {
                name: Variable {
                    name: "f",
                },
                type: Some(
                    Null,
                ),
                variadic: false,
                default: None,
                flags: [],
                by_ref: false,
            },
        ],
        body: [
            Return {
                value: Some(
                    Null,
                ),
            },
        ],
        return_type: Some(
            Union(
                [
                    Null,
                    String,
                    Integer,
                    Float,
                ],
            ),
        ),
        by_ref: false,
    },
]