---
title: "init(device:learningRate:)"
framework: metalperformanceshaders
role: symbol
role_heading: Initializer
path: "metalperformanceshaders/mpsnnoptimizeradam/init(device:learningrate:)"
---

# init(device:learningRate:)

## Declaration

```swift
init(device: any MTLDevice, learningRate: Float)
```