public static JSClassID JS_NewClass(JSRuntime rt, JSClassFinalizer class_finalizer)
{
#if JSB_UNITYLESS
GCHandle.Alloc(class_finalizer);
#endif
var fn_ptr = Marshal.GetFunctionPointerForDelegate(class_finalizer);
return(JSApi.__JSB_NewClass(rt, JSApi.JSB_GetBridgeClassID(), "CSharpClass", fn_ptr));
}