Backoff (async-google-pubsub-client 1.31 API)

```
public class Backoff
extends Object
```
Thread safe backoff. Assumes threads that use the same backoff instance all share the same rate limit, and throttles best effort until reset isn't called

Nested Classes
Modifier and Type	Class and Description
`static class`	`Backoff.Builder`

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static Backoff.Builder`	`builder()` Create a builder that can be used to build an `Acker`.
`void`	`reset()`
`void`	`sleep()`

builder
```
public static Backoff.Builder builder()
```
Create a builder that can be used to build an Acker.

Class Backoff