@MarshalsPointer
 public static long toNative(AVMetadataIdentifierISOUserData o, long flags) {
   if (o == null) {
     return 0L;
   }
   return NSObject.Marshaler.toNative(o.value(), flags);
 }
 public static AVMetadataIdentifierISOUserData valueOf(NSString value) {
   for (AVMetadataIdentifierISOUserData v : values) {
     if (v.value().equals(value)) {
       return v;
     }
   }
   return null;
   //        throw new IllegalArgumentException("No constant with value " + value + " found in "
   //            + /*<name>*/AVMetadataIdentifierISOUserData/*</name>*/.class.getName());
 }