HarmonyOS 鸿蒙Next如何隐藏通知中心里的下载信息

您好，我们项目目前未开启通知权限，但是 app 内下载资源包后，可以看到下载资源包的消息推送，会给用户造成困扰，请问这个信息该如何隐藏。是用系统自带的 request 来下载的，有用到断点续传的功能，代码主体就是一个 function。

request.agent.create(ContextKeeper.getContext(), {
  action: request.agent.Action.DOWNLOAD,
  url: this.downloadUrl,
  overwrite: true,
  begins: this.initialSize,
  saveas: savePath
})
  .then(task => {
    // 注册任务回调
    task.on("progress", p => {
      this.currentSize = p.processed + this.initialSize
      if (this.progressCallback) {
        this.progressCallback(p, this)
      }
    })
    task.on("completed", p => {
      this.taskCompleted(false)
      this.deleteTask()
    })
    task.on("failed", p => {
      this.state = TXDownloadState.failed
      if (this.failedCallback) {
        this.failedCallback(this)
      }
      this.deleteTask()
    })
    task.on("pause", p => {
      this.state = TXDownloadState.paused
      if (this.pauseCallback) {
        this.pauseCallback(this)
      }
    })
    task.on("resume", p => {
      this.state = TXDownloadState.downloading
      if (this.resumeCallback) {
        this.resumeCallback(this)
      }
    })
    task.start(e => {
      if (e) {
        console.log("Failed to start download task: ", e.message)
        return
      }
      this.downloadTask = task
      this.state = TXDownloadState.downloading
    })
  }).catch(e => {
  console.log("Failed to create download task: ", e.message)
})