/** @since Available in iOS 4.0 and later. */
 public String getDefaultFontName() {
   if (has(Keys.DefaultFontName())) {
     CFString val = get(Keys.DefaultFontName(), CFString.class);
     return val.toString();
   }
   return null;
 }
 /** @since Available in iOS 7.0 and later. */
 public String getDateTime() {
   if (has(Keys.DestinationDateTime())) {
     CFString val = get(Keys.DestinationDateTime(), CFString.class);
     return val.toString();
   }
   return null;
 }