App {
    header: AppHeader {
        name: |L 0-0, C 4-15| PlainLine("quicksort"),
        packages: [
            |L 1-1, C 15-33| Entry { shorthand: "base", spaces_after_shorthand: [], package_or_path: |L 1-1, C 21-33| Path(PlainLine("./platform")) },
        ],
        imports: [
            |L 2-2, C 14-25| Package("foo", ModuleName("Bar.Baz"), []),
        ],
        provides: [
            |L 3-3, C 15-24| Exposed("quicksort"),
        ],
        to: |L 3-3, C 30-34| ExistingPackage("base"),
        before_header: [],
        after_app_keyword: [],
        before_packages: [
            Newline,
        ],
        after_packages: [],
        before_imports: [
            Newline,
        ],
        after_imports: [],
        before_provides: [
            Newline,
        ],
        after_provides: [],
        before_to: [],
        after_to: [],
    },
}