# `GSLayer unlockReadMetrics`

*Instance Method*

Releases the read lock for metrics.

## Declaration

```swift
func unlockReadMetrics()
```

```objc
- (void) unlockReadMetrics;
```

```python
unlockReadMetrics()
```

## See Also

### Metrics Locks

- [`GSLayer lockReadMetrics`](/Core/GlyphsCore/GSLayer/lockReadMetrics) — Acquires the read lock for metrics.
- [`GSLayer lockWriteMetrics`](/Core/GlyphsCore/GSLayer/lockWriteMetrics) — Acquires the write lock for metrics.
- [`GSLayer unlockWriteMetrics`](/Core/GlyphsCore/GSLayer/unlockWriteMetrics) — Releases the write lock for metrics.