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# Subscribers.Sink

A simple subscriber that requests an unlimited number of values upon subscription.

```
final class Sink<Input, Failure> where Failure : Error
```

## Topics

### Creating a sink subscriber

[`init(receiveCompletion:receiveValue:)`](/documentation/Combine/Subscribers/Sink/init(receiveCompletion:receiveValue:))

Initializes a sink with the provided closures.

### Inspecting subscriber properties

[`receiveValue`](/documentation/Combine/Subscribers/Sink/receiveValue)

The closure to execute on receipt of a value.

[`receiveCompletion`](/documentation/Combine/Subscribers/Sink/receiveCompletion)

The closure to execute on completion.

## Relationships

### Conforms To

[`CustomCombineIdentifierConvertible`](/documentation/Combine/CustomCombineIdentifierConvertible)

[`Cancellable`](/documentation/Combine/Cancellable)

[`Subscriber`](/documentation/Combine/Subscriber)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`CustomReflectable`](/documentation/Swift/CustomReflectable)

[`CustomPlaygroundDisplayConvertible`](/documentation/Swift/CustomPlaygroundDisplayConvertible)

---

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