docs: def _GetTimelineStatEntriesRelDB(api_client_id, file_path, with_history=True):
    """Gets timeline entries from REL_DB."""
    path_type, components = rdf_objects.ParseCategorizedPath(file_path)
  
    client_id = str(api_client_id)
  
    try:
      root_path_info = data_store.REL_DB.ReadPathInfo(client_id, path_type,
                                                      components)
    except db.UnknownPathError:
      return
  
    path_infos = []
    for path_info in itertools.chain(
        [root_path_info],
        data_store.REL_DB.ListDescendentPathInfos(client_id, path_type,
                                                  components),
    ):
      # TODO(user): this is to keep the compatibility with current
      # AFF4 implementation. Check if this check is needed.
      if path_info.directory:
        continue
  
      categorized_path = rdf_objects.ToCategorizedPath(path_info.path_type,
                                                       path_info.components)
      if with_history:
        path_infos.append(path_info)
      else:
        yield categorized_path, path_info.stat_entry, path_info.hash_entry
  
    if with_history:
      hist_path_infos = data_store.REL_DB.ReadPathInfosHistories(
          client_id, path_type, [tuple(pi.components) for pi in path_infos])
      for path_info in itertools.chain(*hist_path_infos.itervalues()):
        categorized_path = rdf_objects.ToCategorizedPath(path_info.path_type,
                                                         path_info.components)
        yield categorized_path, path_info.stat_entry, path_info.hash_entry