    # Sample Nix file
    # ---------------
    let
        bool = true && false;
        var1 = if 3 < 4 then "a" else "b";
    in {
        /*
           Multi-line comments
        */
        inherit var1;

        var2 = with builtins; [
            0 1 2 (-3) (-4)
            123.456 .12e34
            (12 + 345 * 6789 / 321)
        ];

        var3 = [
            "Single-line string"
            "
              Multi-line string
            "
            ''
              Indented string.
            ''
        ];
        nested.var4 = [
            "String with ${var1}"
            "Another one with escaped \${var1}"
            ''
              Document with ${var1}
              which is ''${var1}
            ''
            ''
              My home: ${builtins.getEnv "HOME"}
              Escaped tab: ''\\t
            ''
        ];

        nested.a.imported = (import ./example.nix);

        fn = (x: y: x + y);

        fn1 = { a, b ? import ./file.nix, c ? { a = 1; b = 2; }, ... }: rec {
            inherit (import ./.);
            x = a;
        };
    }