code: def gng_importer(self, corpus_file):
          
          with c_open(corpus_file, 'r', encoding='utf-8') as gng:
              for line in gng:
                  line = line.rstrip().split('\t')
                  words = line[0].split()
  
                  self._add_to_ngcorpus(self.ngcorpus, words, int(line[2]))
docs: Fill in self.ngcorpus from a Google NGram corpus file.
  
          Parameters
          ----------
          corpus_file : file
              The Google NGram file from which to initialize the n-gram corpus