A Rusty Tencent Api Client with v3 authorization. Only machine translation api is supported now, other apis are not supported at present
```rust
fn buildclient() -> TencentClient
fn main() {
let client = buildclient();
let call = client
.translate()
.texttranslate()
.source("it") // Italy
.target("zh")
.projectid(PROJECTID)
.region("REGION")
.sourcetext("Credere è destino")
.build()
.unwrap();
// {"Response":{"RequestId":"38b2df48-48e6-4aa5-ace4-xxxxxxxxx","Source":"it","Target":"zh","TargetText":"相信就是命运"}}
let result = call
.doit(|body| {
let string = String::fromutf8(body).unwrap();
let value = serdejson::fromstr::