How to use the it-length-prefixed.decode function in it-length-prefixed

async _handlePush ({ connection, stream }) {
    const [data] = await pipe(
      stream,
      lp.decode(),
      take(1),
      toBuffer,
      collect
    )

    let message
    try {
      message = Message.decode(data)
    } catch (err) {
      return log.error('received invalid message', err)
    }

    // Update the listen addresses
    const peerInfo = new PeerInfo(connection.remotePeer)

    try {

async _processMessages (idB58Str, conn, peer) {
    const onRpcFunc = this._onRpc
    try {
      await pipe(
        conn,
        lp.decode(),
        async function (source) {
          for await (const data of source) {
            const rpc = Buffer.isBuffer(data) ? data : data.slice()

            onRpcFunc(idB58Str, message.rpc.RPC.decode(rpc))
          }
        }
      )
    } catch (err) {
      this._onPeerDisconnected(peer, err)
    }
  }

async identify (connection) {
    const { stream } = await connection.newStream(MULTICODEC_IDENTIFY)
    const [data] = await pipe(
      stream,
      lp.decode(),
      take(1),
      toBuffer,
      collect
    )

    if (!data) {
      throw errCode(new Error('No data could be retrieved'), codes.ERR_CONNECTION_ENDED)
    }

    let message
    try {
      message = Message.decode(data)
    } catch (err) {
      throw errCode(err, codes.ERR_INVALID_MESSAGE)
    }