如何获取对象的所有方法

@Entry 
@Component struct Index { 
  aboutToAppear(): void { 
    class MyClass { 
      foo() { 
      } 
 
      bar() { 
      } 
    } 
 
    let proto = Reflect.get(MyClass, "prototype"); 
    let methods = Object.getOwnPropertyNames(proto); 
    console.info('hello' +methods.toString()) 
  } 
  build() { 
    Row() { 
      Text('haha') 
    } 
  } 
}