code: def open_file(path):
      """more robust open function"""
      return open(path, encoding="utf-8")
  
file_path: texar/examples/transformer/utils/preprocess.py
imports: import collections
  import re
  import json
  import os
  import numpy
  import pickle
  import argparse
  from io import open
label_desc: Use image node_id 2 for calling a global function with example usage: open_file(path) and returns: open