code: def test_save_as_line_sentence_en(self):
      corpus_file = get_tmpfile("gensim_utils.tst")
      ref_sentences = [
          line.split()
          for line in utils.any2unicode(
              "hello world\nhow are you"
          ).split("\n")
      ]
  
      utils.save_as_line_sentence(ref_sentences, corpus_file)
  
      with utils.open(corpus_file, "rb", encoding="utf8") as fin:
          sentences = [
              line.strip().split()
              for line in fin.read().strip().split("\n")
          ]
          self.assertEqual(sentences, ref_sentences)
  
imports: import logging
  import unittest
  import numpy
  from gensim import utils
  from gensim.test.utils import datapath, get_tmpfile
label_desc: Use image node_id 1 for calling the TestSaveAsLineSentence obj's underlying member method code with example usage: obj.test_save_as_line_sentence_en() without return types