readAttributeNullableCharString(completionHandler:)
Declaration
func readAttributeNullableCharString(completionHandler: @escaping @Sendable (String?, (any Error)?) -> Void)func readAttributeNullableCharString() async throws -> Stringfunc readAttributeNullableCharString(completionHandler: @escaping @Sendable (String?, (any Error)?) -> Void)func readAttributeNullableCharString() async throws -> String