---
title: functionDescriptors
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtl4stitchedfunctiondescriptor/functiondescriptors
---

# functionDescriptors

Configures an array of function descriptors with references to functions that contribute to the stitching process.

## Declaration

```swift
var functionDescriptors: [MTL4FunctionDescriptor]? { get set }
```