text: public virtual DescribeDBSecurityGroupsResponse DescribeDBSecurityGroups(DescribeDBSecurityGroupsRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeDBSecurityGroupsRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeDBSecurityGroupsResponseUnmarshaller.Instance;return Invoke<DescribeDBSecurityGroupsResponse>(request, options);}