/**
  * Route title callback.
  *
  * @param \Drupal\page_manager\PageVariantInterface $page_variant
  *   The page variant entity.
  * @param string $condition_id
  *   The selection condition ID.
  *
  * @return string
  *   The title for the selection condition edit form.
  */
 public function editSelectionConditionTitle(PageVariantInterface $page_variant, $condition_id)
 {
     $selection_condition = $page_variant->getSelectionCondition($condition_id);
     return $this->t('Edit %label selection condition', ['%label' => $selection_condition->getPluginDefinition()['label']]);
 }
 /**
  * {@inheritdoc}
  */
 public function buildForm(array $form, FormStateInterface $form_state, PageVariantInterface $page_variant = NULL, $condition_id = NULL)
 {
     $this->pageVariant = $page_variant;
     $this->selectionCondition = $page_variant->getSelectionCondition($condition_id);
     return parent::buildForm($form, $form_state);
 }