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