# `GSLayer associatedFontMasterFast`

*Instance Method*

Directly looks up the associated master by its identifier.

## Declaration

```swift
func associatedFontMasterFast() -> GSFontMaster?
```

```objc
- (GSFontMaster *) associatedFontMasterFast;
```

```python
associatedFontMasterFast() -> GSFontMaster
```

## Discussion

This method does not interpolate an Intermediate layer or fall back to another master.

## See Also

### Associated Master

- [`GSLayer.associatedMasterId`](/Core/GlyphsCore/GSLayer/associatedMasterId) — The identifier of the font master that supplies metrics and other master-specific values.
- [`GSLayer associatedFontMaster`](/Core/GlyphsCore/GSLayer/associatedFontMaster) — The master that supplies master-specific values for the layer.
- [`GSLayer associatedFontMasterThin:`](/Core/GlyphsCore/GSLayer/associatedFontMasterThin:) — Resolves the associated master with control over the amount of interpolated master data.