---
title: "insertTimeRange(_:of:at:isolation:)"
framework: avfoundation
role: symbol
role_heading: Instance Method
path: "avfoundation/avmutablecomposition/inserttimerange(_:of:at:isolation:)"
---

# insertTimeRange(_:of:at:isolation:)

## Declaration

```swift
@backDeployed(before: macOS 15, iOS 18, tvOS 18, watchOS 11, visionOS 2)
final func insertTimeRange(_ timeRange: CMTimeRange, of asset: AVAsset, at time: CMTime, isolation: isolated (any Actor)? = #isolation) async throws
```