public static object FastDynamicInvoke(this Delegate functor, params object[] arguments)
 {
     if (functor.Method.ReturnType == typeof(void))
     {
         InvocationMapping.DynamicInvokeAction(functor, arguments);
         return(null);
     }
     return(InvocationMapping.DynamicInvokeReturn(functor, arguments));
 }