Instance SubscriptFoundationEssentials
subscript(_:)
iOS 15.0+
iPadOS 15.0+
Mac Catalyst 15.0+
macOS 12.0+
tvOS 15.0+
watchOS 8.0+
Returns the attribute that corresponds to a specified key.
@preconcurrency subscript<T>(_: T.Type) -> T.Value? where T : AttributedStringKey, T.Value : Sendable { get set }