---
title: "init(data:layout:size:)"
framework: metalperformanceshaders
role: symbol
role_heading: Initializer
path: "metalperformanceshaders/mpscnnlossdatadescriptor/init(data:layout:size:)"
---

# init(data:layout:size:)

## Declaration

```swift
init?(data: Data, layout: MPSDataLayout, size: MTLSize)
```