# lazy_async_promise: Simple primitives to manage tokio and egui
[](https://docs.rs/lazy_async_promise)

This crate currently only features two simple primitives for getting computation time off the main thread using tokio:
- LazyVecPromise for a vector-backed storage which can be partially displayed
- LazyValuePromise for a single value future
As the name suggests both of them are lazily evaluated and nothing happens until polled for the first time.