code: def count_lines(path):
      with io.open(path, encoding="utf-8") as f:
          return sum([1 for _ in f])
  
imports: import argparse
  import datetime
  import io
  from nltk.translate import bleu_score
  import numpy
  import progressbar
  import six
  import chainer
  import chainer.functions
  import chainer.links
  from chainer import training
  from chainer.training import extensions
  import chainerx
label_desc: Use image node_id 3 for calling a global function with example usage: count_lines(path) and returns: sum