code: def _get_msg_id(day, line_num):
      return "{}_{:05}".format(day, line_num)
  
file_path: datasets/tensorflow_datasets/datasets/irc_disentanglement/irc_disentanglement_dataset_builder.py
imports: import collections
  import os
  from typing import List
  from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
  import tensorflow_datasets.public_api
label_desc: Use image node_id 5 for calling a global function with example usage: _get_msg_id(day, line_num) and returns: str