code: func (a *awsEBSPlugin) FindSnapshot(tags *map[string]string) (*crdv1.VolumeSnapshotDataSource, *[]crdv1.VolumeSnapshotCondition, error) {
  	glog.Infof("FindSnapshot by tags: %#v", *tags)
  
  	// TODO: Implement FindSnapshot
  	return nil, nil, fmt.Errorf("Snapshot not found")
  }
docs: // FindSnapshot finds a VolumeSnapshot by matching metadata