code: func (w *wrapper) IgnoredFolder(device protocol.DeviceID, folder string) bool {
  	dev, ok := w.Device(device)
  	if !ok {
  		return false
  	}
  	return dev.IgnoredFolder(folder)
  }
docs: // IgnoredFolder returns whether or not share attempts for the given
  // folder should be silently ignored.