code: def count_lines(path):
      print(path)
      with open_file(path) as f:
          return sum([1 for _ in f])
  
file_path: chainer/examples/chainermn/seq2seq/europal.py
imports: from __future__ import unicode_literals
  import collections
  import gzip
  import io
  import os
  import re
  import numpy
  import progressbar
label_desc: Use image node_id 3 for calling a global function with example usage: count_lines(path) and returns: sum