/**
  * Builds a row for a mapper in the mapper listing.
  *
  * @param \Drupal\config_translation\ConfigMapperInterface $mapper
  *   The mapper.
  *
  * @return array
  *   A render array structure of fields for this mapper.
  */
 public function buildRow(ConfigMapperInterface $mapper)
 {
     $row['label'] = $mapper->getTypeLabel();
     $row['operations']['data'] = $this->buildOperations($mapper);
     return $row;
 }