function SinglePhotoInfo(photo, photoIndex) {
  PhotoInfo.call(this);
  this.photo_ = photo;
  this.photoIndex_ = photoIndex;
}
/**
 * PhotoInfo subclass for individual photos.
 *
 * @param {object} photo metadata.
 * @param {number} the index of the photo if in a collection.
 */
PhotoInfo subclass for individual photos.
@param {object} photo metadata.
@param {number} the index of the photo if in a collection.
PhotoInfo subclass for individual photos . @param { object } photo metadata . @param { number } the index of the photo if in a collection .
function SinglePhotoInfo(photo, photoIndex) {
  PhotoInfo.call(this);
  this.photo_ = photo;
  this.photoIndex_ = photoIndex;
}
function SinglePhotoInfo ( photo , photoIndex ) { PhotoInfo . call ( this ) ; this . photo_ = photo ; this . photoIndex_ = photoIndex ; }
PhotoInfo subclass for individual photos.
PhotoInfo subclass for individual photos .