---
title: bundle
framework: Compute Graph
role: symbol
role_heading: Instance Property
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: computegraph/computenodegraph/libraryreference/bundle
---

# bundle

The bundle identifier used to scope shader function lookup, or nil if the library does not require one.

## Declaration

```swift
var bundle: String?
```