text: public virtual DescribeIdentityUsageResponse DescribeIdentityUsage(DescribeIdentityUsageRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeIdentityUsageRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeIdentityUsageResponseUnmarshaller.Instance;return Invoke<DescribeIdentityUsageResponse>(request, options);}