docs: def get_path_for_core_element(self, core_element_id):
          """Get path to the row representing core element described by handed core_element_id
  
          :param list core_element_id: Core element identifier used in the respective list store column
          :rtype: tuple
          :return: path
          """
          def check_function(row_iter, iter_found):
              row_id = self.tree_store.get_value(row_iter, self.ID_STORAGE_ID)
              if len(row_id) == len(core_element_id):
                  if row_id == core_element_id:
                      iter_found.append(self.tree_store.get_path(row_iter))
  
          found_paths = []
          self.iter_tree_with_handed_function(check_function, found_paths)
          return found_paths[0] if found_paths else None