public static extern JsErrorCode JsCreateCustomExternalObject(IntPtr data, ulong inlineSlotSize, JsTraceCallback traceCallback, JsFinalizeCallback finalizeCallback, ref JsGetterSetterInterceptor getterSetterInterceptor, JsValueRef prototype, out JsValueRef @object);
public static extern JsErrorCode JsCreateTracedExternalObject(IntPtr data, ulong inlineSlotSize, JsTraceCallback traceCallback, JsFinalizeCallback finalizeCallback, JsValueRef prototype, out JsValueRef @object);