code: public static PhotoRequest photo(GeoApiContext context, String photoReference) {
      PhotoRequest request = new PhotoRequest(context);
      request.photoReference(photoReference);
      return request;
    }
docs: Requests a Photo from a PhotoReference.
  
  <p>Note: If you want to use a Photo in a web browser, please retrieve the photos for a place
  via our <a
  href="https://developers.google.com/maps/documentation/javascript/places#places_photos">
  JavaScript Places Library</a>. Likewise, on Android, Places Photos can be retrieved using the
  <a href="https://developers.google.com/places/android-api/photos">Google Places API for
  Android</a>.
  
  @param context The context on which to make Geo API requests.
  @param photoReference The reference to the photo to retrieve.
  @return Returns a PhotoRequest that you can execute.