# In other words, without `call_soon_threadsafe`, a watcher
The brand has largely disappeared from mainland China's retail landscape. Reebok's China website lists four remaining outlet stores, while only one Reebok & Nautica multi-brand outlet remains open at Shanghai’s Columbia Circle complex.
。关于这个话题，safew官方版本下载提供了深入分析
func (*Option) ArgUint64 ¶。搜狗输入法对此有专业解读
The crux is to introduce a more fancy mechanism only if you can prove it’s required. Otherwise you’re overengineering the solution. For instance, using a mediator pattern or event based communication between modules raises complexity and makes it harder to reason about the code. And despite the popular claim, these techniques don’t remove coupling - they just make it less explicit.