Where View.task gets its main-actor isolation from

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SwiftUI’s .task modifier inherits its actor context from the surrounding function. If you call .task inside a view’s body property, the async operation will run on the main actor because View.body is (semi-secretly) annotated with @MainActor . However, if you call .task from a helper property or function that isn’t @MainActor -annotated, the async operation will run in the cooperative thread pool.…

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