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