Results 4 issues of zyctree

the async/await syntax needs to be updated, instead ```rust req.wait()?; ``` now it is like ```rust req.await?; ``` https://tikv.org/docs/3.0/reference/clients/rust/ https://github.com/tikv/client-rust/blob/master/examples/raw.rs

in some cases, v1beta1 has been deprecated, and it will fail when creating with those file the `selector` part when creating `Deployment` is copied from #27 ```yaml selector: matchLabels: app:...

```cpp struct A { void f1(this A& self, int a1, int a2) {} }; void work() { A a; a.f1(A &self, int a1, int a2) } ``` clangd completes `a.f1`...

enhancement