How to use the @uppy/companion-client.Socket function in @uppy/companion-client

return new Promise((resolve, reject) => {
      const token = file.serverToken
      const host = getSocketHost(file.remote.companionUrl)
      const socket = new Socket({ target: `${host}/api/${token}`, autoOpen: false })
      this.uploaderSockets[file.id] = socket
      this.uploaderEvents[file.id] = new EventTracker(this.uppy)

      this.onFileRemove(file.id, () => {
        queuedRequest.abort()
        socket.send('pause', {})
        this.resetUploaderReferences(file.id)
        resolve(`upload ${file.id} was removed`)
      })

      this.onPause(file.id, (isPaused) => {
        if (isPaused) {
          // Remove this file from the queue so another file can start in its place.
          queuedRequest.abort()
          socket.send('pause', {})
        } else {

}).then((res) => {
        const token = res.token
        const host = getSocketHost(file.remote.companionUrl)
        const socket = new Socket({ target: `${host}/api/${token}`, autoOpen: false })
        this.uploaderEvents[file.id] = new EventTracker(this.uppy)

        this.onFileRemove(file.id, () => {
          socket.send('pause', {})
          queuedRequest.abort()
          resolve(`upload ${file.id} was removed`)
        })

        this.onCancelAll(file.id, () => {
          socket.send('pause', {})
          queuedRequest.abort()
          resolve(`upload ${file.id} was canceled`)
        })

        this.onRetry(file.id, () => {
          socket.send('pause', {})

return new Promise((resolve, reject) => {
      const token = file.serverToken
      const host = getSocketHost(file.remote.companionUrl)
      const socket = new Socket({ target: `${host}/api/${token}` })
      this.uploaderSockets[socket] = socket
      this.uploaderEvents[file.id] = createEventTracker(this.uppy)

      this.onFileRemove(file.id, (removed) => {
        this.resetUploaderReferences(file.id, { abort: true })
        resolve(`upload ${file.id} was removed`)
      })

      this.onFilePause(file.id, (isPaused) => {
        socket.send(isPaused ? 'pause' : 'resume', {})
      })

      this.onPauseAll(file.id, () => socket.send('pause', {}))

      this.onResumeAll(file.id, () => {
        if (file.error) {