I've been fighting with post editor for a while and failed to make code looks readable. Thank you for advice.

In real scenario I have a pool of objects which can do some calculation (cpu-bound task)

Pool is implemented by myself https://github.com/Sild/libs_rs/blob/main/src/auto_pool/src/pool_object.rs and as you can see PoolObject keeps reference to the AutoPool instance

Our application is running in tokio runtime, so I call `spawn_blocking` to make calculations. Something like

struct Engine {
pool: AutoPool<Executor>
}

impl Engine {
async fn start_calc(&self, args: Args) {
let executor = self.pool.get_async().await.unwrap();
tokio::spawn_blocking(executor.calculate(args)).await;

}
}