code: def get_parent(brain_or_object):
      
  
      if is_root(brain_or_object):
          return get_portal()
  
      if is_brain(brain_or_object):
          parent_path = get_parent_path(brain_or_object)
          return get_object_by_path(parent_path)
  
      return brain_or_object.aq_parent
docs: Locate the parent object of the content/catalog brain
  
      :param brain_or_object: A single catalog brain or content object
      :type brain_or_object: ATContentType/DexterityContentType/CatalogBrain
      :returns: parent object
      :rtype: Parent content