Retry a future using the given backoff policy and sleep function.

```rust use futuresretrypolicies::{tokio::retry, ShouldRetry}; use retry_policies::policies::ExponentialBackoff;

#[derive(Debug)]

enum Error { Retry, DoNotRetry } impl ShouldRetry for Error { fn shouldretry(&self) -> bool { matches!(self, Error::Retry) } } async fn makerequest() -> Result<(), Error> { // make a request Ok(()) }

[tokio::main]

async fn main() -> Result<(), Error> { let backoff = ExponentialBackoff::builder().buildwithmaxretries(3); retry(backoff, makerequest).await } ```