code: def get_token(self, idx):
      return self.tokens[idx]
  
file_path: nlpaug/nlpaug/util/doc/doc.py
imports: from nlpaug.util.doc.token import Token
  from nlpaug.util.doc.change_log import ChangeLog
label_desc: Use image node_id 6 for calling the Doc obj's underlying member method code with example usage: obj.get_token(idx) and returns: self