# `GSParametersAndPropertiesProtocol`

*Protocol*

## Declaration

```swift
protocol GSParametersAndPropertiesProtocol : NSObjectProtocol
```

```objc
@protocol GSParametersAndPropertiesProtocol <NSObject>
```

```python
GSParametersAndPropertiesProtocol
```

## Topics

### Instance Properties

- [`GSParametersAndPropertiesProtocol.customParameters`](/Core/GlyphsCore/GSParametersAndPropertiesProtocol/customParameters)
- [`GSParametersAndPropertiesProtocol.properties`](/Core/GlyphsCore/GSParametersAndPropertiesProtocol/properties)

## Relationships

### Inherits From

- `NSObject`

### Conforming Types

- [`GSFont`](/Core/GlyphsCore/GSFont)
- [`GSFontMaster`](/Core/GlyphsCore/GSFontMaster)
- [`GSInstance`](/Core/GlyphsCore/GSInstance)