How to use the react-native-google-cast.stop function in react-native-google-cast

componentWillUnmount() {
    const { casting } = this.state

    GoogleCast.EventEmitter.removeAllListeners(GoogleCast.SESSION_STARTED)
    GoogleCast.EventEmitter.removeAllListeners(GoogleCast.SESSION_ENDED)
    GoogleCast.EventEmitter.removeAllListeners(GoogleCast.MEDIA_PLAYBACK_STARTED)
    GoogleCast.EventEmitter.removeAllListeners(GoogleCast.MEDIA_PROGRESS_UPDATED)

    if (casting) {
      // Stop casting but keep the connection
      GoogleCast.stop()
    }
  }

onActionSelected = position => {
    switch (position) {
      case 0:
        GoogleCast.play()
        break
      case 1:
        GoogleCast.pause()
        break
      case 2:
        GoogleCast.stop()
        break
      case 3:
        this.subtitlesEnabled = !this.subtitlesEnabled
        GoogleCast.toggleSubtitles(this.subtitlesEnabled)
        break
    }
  }