---
title: "updateGammaAndBeta(withGroupNormalizationStateBatch:)"
framework: metalperformanceshaders
role: symbol
role_heading: Instance Method
path: "metalperformanceshaders/mpscnngroupnormalizationdatasource/updategammaandbeta(withgroupnormalizationstatebatch:)"
---

# updateGammaAndBeta(withGroupNormalizationStateBatch:)

## Declaration

```swift
optional func updateGammaAndBeta(withGroupNormalizationStateBatch groupNormalizationStateBatch: [MPSCNNGroupNormalizationGradientState]) -> Bool
```