package foo:foo;

world module {
  export a: func();
  export b: func(a: s8, b: s16, c: s32, d: s64) -> string;
  export c: func() -> tuple<s8, s16, s32, s64>;

  export bar: interface {
    flags x {
        a,
        b,
        c
    }

    a: func(x: x);
  }

  export foo: interface {
    variant x {
        a,
        b(string),
        c(s64)
    }

    a: func();
    b: func(x: string) -> x;
    c: func(x: x) -> string;
  }
}