text: public virtual DescribeFileSystemPolicyResponse DescribeFileSystemPolicy(DescribeFileSystemPolicyRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeFileSystemPolicyRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeFileSystemPolicyResponseUnmarshaller.Instance;return Invoke<DescribeFileSystemPolicyResponse>(request, options);}