Issue #3508828 by kristiaanvandeneynde, borisson_:...

interface VariationCacheFactoryInterface {

  /**

   * Gets a variation cache backend for a given cache bin.

   * Gets a variation cache for a given cache bin.

   *

   * @param string $bin

   *   The cache bin for which a variation cache backend should be returned.

   *   The cache bin for which a variation cache should be returned.

   *

   * @return \Drupal\Core\Cache\VariationCacheInterface

   *   The variation cache backend associated with the specified bin.

   *   The variation cache associated with the specified bin.

   */

  public function get($bin);