# `GSFilterFlatKerningProtocol`

*Protocol*

## Declaration

```swift
protocol GSFilterFlatKerningProtocol : NSObjectProtocol
```

```objc
@protocol GSFilterFlatKerningProtocol <NSObject>
```

```python
GSFilterFlatKerningProtocol
```

## Topics

### Instance Methods

- [`GSFilterFlatKerningProtocol filterFlatKerning:font:error:`](/Core/GlyphsApp/GSFilterFlatKerningProtocol/filterFlatKerning:font:error:)

## Relationships

### Inherits From

- `NSObject`