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# LanguageModelExecutorGenerationChannel.Reasoning

A reasoning event.

```
struct Reasoning
```

## Overview

A per-entry reasoning text, segment replacements, signature updates, metadata, or usage.
Reasoning events are peers of [`LanguageModelExecutorGenerationChannel.Response`](/documentation/FoundationModels/LanguageModelExecutorGenerationChannel/Response) and [`LanguageModelExecutorGenerationChannel.ToolCalls`](/documentation/FoundationModels/LanguageModelExecutorGenerationChannel/ToolCalls).

## Topics

### Handling reasoning

[`var action: LanguageModelExecutorGenerationChannel.Reasoning.Action`](/documentation/FoundationModels/LanguageModelExecutorGenerationChannel/Reasoning/action-swift.property)

The action to perform.

[`struct Action`](/documentation/FoundationModels/LanguageModelExecutorGenerationChannel/Reasoning/Action-swift.struct)

An operation that can be performed on a reasoning entry.

[`var entryID: String?`](/documentation/FoundationModels/LanguageModelExecutorGenerationChannel/Reasoning/entryID)

The identifier for the entry.

## Relationships

### Conforms To

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

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

---

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