# replay

Replays the last `bufferSize` values of a Versioned stream.

## Signatures

```ts
export declare function replay<R0, E0, A, E, R, B, E2, R2>(versioned: Versioned<R0, E0, A, E, R, B, E2, R2>, bufferSize: number): Versioned<R0, E0, A, E | Cause.IllegalArgumentError, R | Scope.Scope, B, E2, R2>;
```

## Why

Shares an upstream push subscription and replays a bounded number of updates to late observers
without changing current-value reads.

## Ownership and lifetime

The returned Fx requires Scope; its shared upstream subscription and retained buffer are
finalized when that Scope closes. Current reads retain input errors and services.