volumesAttachedCheck := make(map[*volume.Spec]bool)
	for _, spec := range specs {
		volumesAttachedCheck[spec] = true
	}

	return volumesAttachedCheck, nil
}

func (attacher *iscsiAttacher) WaitForAttach(spec *volume.Spec, devicePath string, pod *v1.Pod, timeout time.Duration) (string, error) {
	mounter, err := volumeSpecToMounter(spec, attacher.host, attacher.targetLocks, pod)
	if err != nil {

	volumesAttachedCheck := make(map[*volume.Spec]bool)
	for _, spec := range specs {
		volumesAttachedCheck[spec] = true
	}

	return volumesAttachedCheck, nil
}

func (attacher *fcAttacher) WaitForAttach(spec *volume.Spec, devicePath string, _ *v1.Pod, timeout time.Duration) (string, error) {
	mounter, err := volumeSpecToMounter(spec, attacher.host)
	if err != nil {
		klog.Warningf("failed to get fc mounter: %v", err)

  optional bool attached = 1;

  // attachmentMetadata is populated with any
  // information returned by the attach operation, upon successful attach, that must be passed
  // into subsequent WaitForAttach or Mount calls.
  // This field must only be set by the entity completing the attach
  // operation, i.e. the external-attacher.
  // +optional
  map<string, string> attachmentMetadata = 2;