UniTask is a lightweight async/await alternative designed for Unity.
Localify uses it internally for editor async operations.
Open Unity → Window → Package Manager.
Click + in the top left corner.
Select Add package from git URL...
Paste the following URL:
[<https://github.com/Cysharp/UniTask.git?path=src/UniTask/Assets/Plugins/UniTask>](<https://github.com/Cysharp/UniTask.git?path=src/UniTask/Assets/Plugins/UniTask>)
Press Add and wait for installation to complete.
✅ After installation, the UniTask namespace will become available in your project.