Synchronization Primitives for Python

With async IO, it's all a bunch of stuff that's being broken apart on a single thread. So having primitives that will kind of function like threads to protect data while stuff is happening while it's in temporarily invalid states, that's pretty cool forync IO. My vote still for unsync is the best of the four, even though it was unmentioned. It's a compatibility layer that takesAsync IO threading and multi processing and turns them all into things that you can await.