text: public virtual DescribeCacheSecurityGroupsResponse DescribeCacheSecurityGroups(DescribeCacheSecurityGroupsRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeCacheSecurityGroupsRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeCacheSecurityGroupsResponseUnmarshaller.Instance;return Invoke<DescribeCacheSecurityGroupsResponse>(request, options);}