How to use the howler.Howler._howls function in howler

pause() {
      const sound = playerList[music.state.index]
      if (sound.howl && sound.howl.playing()) {
        // sound.howl.fade(music.state.volume, 0, 200, sound.song_id)
        sound.howl.pause()
      }
      Howler._howls.forEach(h => h.pause())
    },

pause() {
      const sound = playerList[music.state.index]
      if (sound && sound.howl && sound.howl.playing()) {
        // sound.howl.fade(music.state.volume, 0, 200, sound.song_id)
        sound.howl.pause()
      }
      Howler._howls.forEach(h => h.pause())
    },

skipToSong(index) {

      // 停止当前音乐
      const currentTrack = playerList[music.state.index]
      if (currentTrack && currentTrack.howl) {
        currentTrack.howl.stop()
      }

      Howler._howls.forEach(h => h.stop())
      music.state.progress = 0
      music.player.play(index)
    },

skipToSong(index) {
      // 停止当前音乐
      const currentTrack = playerList[music.state.index]
      if (currentTrack && currentTrack.howl) {
        currentTrack.howl.stop()
      }

      Howler._howls.forEach(h => h.stop())
      music.state.progress = 0
      music.player.play(index)
    },