readAttributeBarrierPosition(completion:)
Declaration
func readAttributeBarrierPosition(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeBarrierPosition() async throws -> NSNumberfunc readAttributeBarrierPosition(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeBarrierPosition() async throws -> NSNumber