class_docstr: A collection of options, a dictionary with object-like access.
  
  Normally accessed via static functions in the `tornado.options` module,
  which reference a global instance.
class_docstr_tok: ["A","collection","of","options",",","a","dictionary","with","object-like","access",".","Normally","accessed","via","static","functions","in","the","`","tornado.options","`","module",",","which","reference","a","global","instance","."]
code: def __init__(self) -> None:
      # we have to use self.__dict__ because we override setattr.
      self.__dict__["_options"] = {}
      self.__dict__["_parse_callbacks"] = []
      self.define(
          "help",
          type=bool,
          help="show this help information",
          callback=self._help_callback,
      )
  
imports: import datetime
  import numbers
  import re
  import sys
  import os
  import textwrap
  from tornado.escape import _unicode, native_str
  from tornado.log import define_logging_options
  from tornado.util import basestring_type, exec_in
  from typing import Any, Iterator, Iterable, Tuple, Set, Dict, Callable, List, TextIO, Optional
label_desc: Use image node_id 1 to create a new OptionParser object from inherited base classes: object with example: obj = OptionParser()