How to use the y-protocols/awareness.js.removeAwarenessStates function in y-protocols

disconnect () {
    // signal through all available signaling connections
    signalingConns.forEach(conn => {
      if (conn.connected) {
        conn.send({ type: 'unsubscribe', topics: [this.name] })
      }
    })
    awarenessProtocol.removeAwarenessStates(this.awareness, [this.doc.clientID], 'disconnect')
    // broadcast peerId removal via broadcastchannel
    const encoderPeerIdBc = encoding.createEncoder()
    encoding.writeVarUint(encoderPeerIdBc, messageBcPeerId)
    encoding.writeUint8(encoderPeerIdBc, 0) // remove peerId from other bc peers
    encoding.writeVarString(encoderPeerIdBc, this.peerId)
    broadcastBcMessage(this, encoding.toUint8Array(encoderPeerIdBc))

    bc.unsubscribe(this.name, this._bcSubscriber)
    this.bcconnected = false
    this.doc.off('update', this._docUpdateHandler)
    this.awareness.off('change', this._awarenessUpdateHandler)
    this.webrtcConns.forEach(conn => conn.destroy())
  }
  destroy () {

window.addEventListener('beforeunload', () => {
      awarenessProtocol.removeAwarenessStates(this.awareness, [doc.clientID], 'window unload')
      rooms.forEach(room => {
        room.disconnect()
      })
    })
  }