# `GSInfoValue.key`

*Instance Property*

## Declaration

```swift
var key: String! { get }
```

```objc
@property (nonatomic, readonly) NSString * key;
```

[See also `key` in the Python API](https://docu.glyphsapp.com/#GSInfoValue.key)

```python
pyobjc_instanceMethods.key() -> str
```