---
title: preloadedLibraries
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtl4pipelinestagedynamiclinkingdescriptor/preloadedlibraries
---

# preloadedLibraries

Provides an array of dynamic libraries the compiler loads when it builds the pipeline.

## Declaration

```swift
var preloadedLibraries: [any MTLDynamicLibrary] { get set }
```