code: def close(self, *args, **kwargs):
      for fileid, f in self.files.items():
          if self.trace:
              print("closing %s" % fileid)
  
          f.close()
          del self.files[fileid]
  
file_path: nltk-trainer/nltk_trainer/writer/__init__.py
imports: import codecs, collections, os, os.path
label_desc: Use image node_id 4 for calling the CorpusWriter obj's underlying member method code with example usage: obj.close() without return types