readAttributeNullableInt64u(completionHandler:)
Declaration
func readAttributeNullableInt64u(completionHandler: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeNullableInt64u() async throws -> NSNumberfunc readAttributeNullableInt64u(completionHandler: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeNullableInt64u() async throws -> NSNumber