使用react-youtube，除了引用事件之外，还有什么方法可以引用播放器吗？

import React from 'react';
import YouTube from 'react-youtube';

class App extends React.Component {
  constructor(props) {
    super(props);
    this.youtubeRef = React.createRef();
  }

  playVideo() {
    this.youtubeRef.current.internalPlayer.playVideo();
  }

  pauseVideo() {
    this.youtubeRef.current.internalPlayer.pauseVideo();
  }

  setVolume(volume) {
    this.youtubeRef.current.internalPlayer.setVolume(volume);
  }

  render() {
    return (
      <div>
        <YouTube
          videoId="YOUR_VIDEO_ID"
          ref={this.youtubeRef}
          onReady={this.onReady}
        />
        <button onClick={() => this.playVideo()}>Play</button>
        <button onClick={() => this.pauseVideo()}>Pause</button>
        <button onClick={() => this.setVolume(50)}>Set Volume</button>
      </div>
    );
  }
}

export default App;