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# UIFocusDebuggerOutput

An interface for specifying output from a focus debugger object.

```
@MainActor protocol UIFocusDebuggerOutput : NSObjectProtocol
```

## Overview

Don’t use this protocol directly in your code. When debugging your app from the `lldb` command line, the methods of [`UIFocusDebugger`](/documentation/UIKit/UIFocusDebugger) output their results to an object that adopts this protocol. The debugger takes the output and formats it for display.

## Relationships

### Inherits From

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

---

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