code: @Override
      public DescribeSnapshotAttributeResult describeSnapshotAttribute(DescribeSnapshotAttributeRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeSnapshotAttribute(request);
      }
docs: <p>
  Describes the specified attribute of the specified snapshot. You can specify only one attribute at a time.
  </p>
  <p>
  For more information about EBS snapshots, see <a
  href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSSnapshots.html">Amazon EBS Snapshots</a> in the
  <i>Amazon Elastic Compute Cloud User Guide</i>.
  </p>
  
  @param describeSnapshotAttributeRequest
  Contains the parameters for DescribeSnapshotAttribute.
  @return Result of the DescribeSnapshotAttribute operation returned by the service.
  @sample AmazonEC2.DescribeSnapshotAttribute
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/DescribeSnapshotAttribute" target="_top">AWS
  API Documentation</a>