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# CombineIdentifier

A unique identifier for identifying publisher streams.

```
struct CombineIdentifier
```

## Overview

To conform to [`CustomCombineIdentifierConvertible`](/documentation/Combine/CustomCombineIdentifierConvertible) in a
[`Subscription`](/documentation/Combine/Subscription) or [`Subject`](/documentation/Combine/Subject) that you implement as a structure, create an instance of [`CombineIdentifier`](/documentation/Combine/CombineIdentifier) as follows:

```
let combineIdentifier = CombineIdentifier()
```

## Topics

### Creating a Combine identifier

[`init()`](/documentation/Combine/CombineIdentifier/init())

Creates a unique Combine identifier.

[`init(_:)`](/documentation/Combine/CombineIdentifier/init(_:))

Creates a Combine identifier, using the bit pattern of the provided object.

### Providing a description

[`description`](/documentation/Combine/CombineIdentifier/description)

A textual representation of this instance.

## Relationships

### Conforms To

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

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

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

---

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