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