code: def test_sentences_words(self, save_file, debug=False):
      print("🌋 Saving sentence list")
      with io.open(save_file, "w", encoding="utf-8") as f:
          if debug:
              print("Sentences saved in", save_file)
          for doc in self.docs:
              out_str = (
                  "#begin document ("
                  + doc.name
                  + "); part "
                  + doc.part
                  + "\n"
              )
              f.write(out_str)
              for sent in doc.utterances:
                  f.write(sent.text + "\n")
              out_str = "#end document\n\n"
              f.write(out_str)
  
imports: import re
  import argparse
  import time
  import os
  import io
  import pickle
  import spacy
  import numpy
  from tqdm import tqdm
  from neuralcoref.train.compat import unicode_
  from neuralcoref.train.document import Mention, Document, Speaker, EmbeddingExtractor, MISSING_WORD, extract_mentions_spans
  from neuralcoref.train.utils import parallel_process
label_desc: Use image node_id 3 for calling the ConllCorpus obj's underlying member method code with example usage: obj.test_sentences_words(save_file, debug) without return types