# `GSLayer addGuide:`

*Instance Method*

Adds a guide.

## Declaration

```swift
func addGuide(_ guide: GSGuide)
```

```objc
- (void) addGuide:(GSGuide *) guide;
```

```python
addGuide_(guide: GSGuide)
```

## See Also

### Guides

- [`GSLayer.guides`](/Core/GlyphsCore/GSLayer/guides) — Layer-local guides.
- [`GSLayer countOfGuides`](/Core/GlyphsCore/GSLayer/countOfGuides) — The number of layer-local guides.
- [`GSLayer objectInGuidesAtIndex:`](/Core/GlyphsCore/GSLayer/objectInGuidesAtIndex:) — The guide at an index.
- [`GSLayer indexOfObjectInGuides:`](/Core/GlyphsCore/GSLayer/indexOfObjectInGuides:) — The index of a guide in the layer.
- [`GSLayer insertObject:inGuidesAtIndex:`](/Core/GlyphsCore/GSLayer/insertObject:inGuidesAtIndex:) — Inserts a guide at an index.
- [`GSLayer removeObjectFromGuides:`](/Core/GlyphsCore/GSLayer/removeObjectFromGuides:) — Removes a guide.
- [`GSLayer removeObjectFromGuidesAtIndex:`](/Core/GlyphsCore/GSLayer/removeObjectFromGuidesAtIndex:) — Removes the guide at an index.