public ListGatewayGroupsResult listGatewayGroups(ListGatewayGroupsRequest request) {request = beforeClientExecution(request);return executeListGatewayGroups(request);}

public virtual ListGatewayGroupsResponse ListGatewayGroups(ListGatewayGroupsRequest request){var options = new InvokeOptions();options.RequestMarshaller = ListGatewayGroupsRequestMarshaller.Instance;options.ResponseUnmarshaller = ListGatewayGroupsResponseUnmarshaller.Instance;return Invoke<ListGatewayGroupsResponse>(request, options);}
