code: protected function getItemHrefIndexFile(QtiRunnerServiceContext $context, $itemIdentifier)
      {
          $compilationDirectory = $context->getCompilationDirectory()['private'];
          return $compilationDirectory->getFile(\taoQtiTest_models_classes_QtiTestCompiler::buildHrefIndexPath($itemIdentifier));
      }
docs: Gets the file that contains the href for the AssessmentItemRef Identifier
  @param QtiRunnerServiceContext $context
  @param string $itemIdentifier
  @return \oat\oatbox\filesystem\File