code: @Override
      public DescribeLaunchTemplateVersionsResult describeLaunchTemplateVersions(DescribeLaunchTemplateVersionsRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeLaunchTemplateVersions(request);
      }
docs: <p>
  Describes one or more versions of a specified launch template. You can describe all versions, individual
  versions, or a range of versions.
  </p>
  
  @param describeLaunchTemplateVersionsRequest
  @return Result of the DescribeLaunchTemplateVersions operation returned by the service.
  @sample AmazonEC2.DescribeLaunchTemplateVersions
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/DescribeLaunchTemplateVersions"
  target="_top">AWS API Documentation</a>