text: public virtual ListDeadLetterSourceQueuesResponse ListDeadLetterSourceQueues(ListDeadLetterSourceQueuesRequest request){var options = new InvokeOptions();options.RequestMarshaller = ListDeadLetterSourceQueuesRequestMarshaller.Instance;options.ResponseUnmarshaller = ListDeadLetterSourceQueuesResponseUnmarshaller.Instance;return Invoke<ListDeadLetterSourceQueuesResponse>(request, options);}