text: public virtual ListReceiptRuleSetsResponse ListReceiptRuleSets(ListReceiptRuleSetsRequest request){var options = new InvokeOptions();options.RequestMarshaller = ListReceiptRuleSetsRequestMarshaller.Instance;options.ResponseUnmarshaller = ListReceiptRuleSetsResponseUnmarshaller.Instance;return Invoke<ListReceiptRuleSetsResponse>(request, options);}