klog.Error(log("attacher.VolumesAreAttached failed for attach.ID=%v: %v", attachID, err))
			continue
		}
		klog.V(4).Info(log("attacher.VolumesAreAttached attachment [%v] has status.attached=%t", attachID, attach.Status.Attached))
		attached[spec] = attach.Status.Attached
	}

	return attached, nil
}

func (c *csiAttacher) GetDeviceMountPath(spec *volume.Spec) (string, error) {

	}}
}

// Attacher
type testPluginAttacher struct {
	ErrorEncountered  *bool
	attachedVolumeMap map[string][]string
	pluginLock        *sync.RWMutex
}

func (attacher *testPluginAttacher) Attach(spec *volume.Spec, nodeName types.NodeName) (string, error) {
	attacher.pluginLock.Lock()
	defer attacher.pluginLock.Unlock()
	if spec == nil {
		*attacher.ErrorEncountered = true

	"attached":           "attached indicates the volume is successfully attached. This field must only be set by the entity completing the attach operation, i.e. the external-attacher.",

type VolumeAttachmentStatus struct {
	// attached indicates the volume is successfully attached.
	// This field must only be set by the entity completing the attach
	// operation, i.e. the external-attacher.
	Attached bool `json:"attached" protobuf:"varint,1,opt,name=attached"`

	// attachmentMetadata is populated with any
	// information returned by the attach operation, upon successful attach, that must be passed

message VolumeAttachmentStatus {
  // attached indicates the volume is successfully attached.
  // This field must only be set by the entity completing the attach
  // operation, i.e. the external-attacher.
  optional bool attached = 1;

  // attachmentMetadata is populated with any
  // information returned by the attach operation, upon successful attach, that must be passed

	// error would confuse users.
	Delete() error
}

// Attacher can attach a volume to a node.
type Attacher interface {
	DeviceMounter

	// Attaches the volume specified by the given spec to the node with the given Name.
	// On success, returns the device path where the device was attached on the
	// node.
	Attach(spec *Spec, nodeName types.NodeName) (string, error)

	"attached":           "attached indicates the volume is successfully attached. This field must only be set by the entity completing the attach operation, i.e. the external-attacher.",

message VolumeAttachmentStatus {
  // attached indicates the volume is successfully attached.
  // This field must only be set by the entity completing the attach
  // operation, i.e. the external-attacher.
  optional bool attached = 1;

  // attachmentMetadata is populated with any
  // information returned by the attach operation, upon successful attach, that must be passed

	"attached":           "attached indicates the volume is successfully attached. This field must only be set by the entity completing the attach operation, i.e. the external-attacher.",

message VolumeAttachmentStatus {
  // attached indicates the volume is successfully attached.
  // This field must only be set by the entity completing the attach
  // operation, i.e. the external-attacher.
  optional bool attached = 1;

  // attachmentMetadata is populated with any
  // information returned by the attach operation, upon successful attach, that must be passed