code: def read_item_names():
      """Read the u.item file from MovieLens 100-k dataset and return two
      mappings to convert raw ids into movie names and movie names into raw ids.
      """
  
      file_name = get_dataset_dir() + "/ml-100k/ml-100k/u.item"
      rid_to_name = {}
      name_to_rid = {}
      with open(file_name, encoding="ISO-8859-1") as f:
          for line in f:
              line = line.split("|")
              rid_to_name[line[0]] = line[1]
              name_to_rid[line[1]] = line[0]
  
      return rid_to_name, name_to_rid
  
label_desc: Use image node_id 1 for calling a global function with example usage: read_item_names() and returns: rid_to_name,  name_to_rid