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