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