public final void marshal(
     ThreadContext context, InvocationBuffer buffer, IRubyObject parameter) {
   buffer.putInt((int) Util.uint32Value(parameter));
 }
 public final void marshal(
     Invocation invocation, InvocationBuffer buffer, IRubyObject parameter) {
   buffer.putInt((int) Util.uint32Value(parameter));
 }
 public final int intValue(ThreadContext context, IRubyObject obj) {
   return (int) Util.uint32Value(obj);
 }