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