TypeToken<?> f = TypeToken.of(new TypeCapture<F>() {}.capture());
    assertEquals(String.class, f.resolveType(Function.class.getTypeParameters()[0]).getType());
    assertEquals(Integer.class, f.resolveType(Function.class.getTypeParameters()[1]).getType());
    assertEquals(Long.class, f.resolveType(Iterable.class.getTypeParameters()[0]).getType());
  }

  public <E extends Comparable<Iterable<String>> & Iterable<Integer>>