code: @Override
      public DeleteLaunchTemplateVersionsResult deleteLaunchTemplateVersions(DeleteLaunchTemplateVersionsRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteLaunchTemplateVersions(request);
      }
docs: <p>
  Deletes one or more versions of a launch template. You cannot delete the default version of a launch template;
  you must first assign a different version as the default. If the default version is the only version for the
  launch template, you must delete the entire launch template using <a>DeleteLaunchTemplate</a>.
  </p>
  
  @param deleteLaunchTemplateVersionsRequest
  @return Result of the DeleteLaunchTemplateVersions operation returned by the service.
  @sample AmazonEC2.DeleteLaunchTemplateVersions
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/DeleteLaunchTemplateVersions"
  target="_top">AWS API Documentation</a>