code: def get_cached_translation(instance, language_code=None, related_name=None, use_fallback=False):
      
      if language_code is None:
          language_code = instance.get_current_language()
  
      translated_model = instance._parler_meta.get_model_by_related_name(related_name)
      values = _get_cached_values(instance, translated_model, language_code, use_fallback)
      if not values:
          return None
  
      try:
          translation = translated_model(**values)
      except TypeError:
          # Some model field was removed, cache entry is no longer working.
          return None
  
      translation._state.adding = False
      return translation
docs: Fetch an cached translation.
  
      .. versionadded 1.2 Added the ``related_name`` parameter.