Invokable<?, ?> delegate = Invokable.from(Foo.class.getDeclaredConstructor());
    assertFalse(delegate.isOverridable());
    assertFalse(delegate.isVarArgs());
  }

  public void testMethod_isVarArgs() throws Exception {
    Invokable<?, ?> delegate = Prepender.method("privateVarArgsMethod", String[].class);
    assertTrue(delegate.isVarArgs());
  }

  public void testConstructor_isVarArgs() throws Exception {