code: @Override
      public DescribeStorageResult describeStorage(DescribeStorageRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeStorage(request);
      }
docs: <p>
  Returns the total amount of snapshot usage and provisioned storage for a user in megabytes.
  </p>
  
  @param describeStorageRequest
  @return Result of the DescribeStorage operation returned by the service.
  @sample AmazonRedshift.DescribeStorage
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/redshift-2012-12-01/DescribeStorage" target="_top">AWS API
  Documentation</a>