# RefChunk.last

Get the last element of a RefChunk as a Filtered.

## Signatures

```ts
export declare const last: <A, E, R>(ref: RefChunk<A, E, R>) => RefSubject.Filtered<A, E, R>;
```

## Why

Models the possibly absent result of last as Filtered state, so absence stays explicit while
later source versions can make a value available.

## Ownership and lifetime

The last view retains no independent value. Its Effect read fails with NoSuchElement
while absent; the observing Scope owns and finalizes its Fx subscription.