code: def define(
      name,
      default=None,
      type=None,
      help=None,
      metavar=None,
      multiple=False,
      group=None,
      callback=None,
  ):
      """Defines an option in the global namespace.
  
      See `OptionParser.define`.
      """
      return options.define(
          name,
          default=default,
          type=type,
          help=help,
          metavar=metavar,
          multiple=multiple,
          group=group,
          callback=callback,
      )
  
imports: from __future__ import absolute_import, division, print_function
  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 import stack_context
  from tornado.util import basestring_type, exec_in
label_desc: Use image node_id 1 for calling a global function with example usage: define(name, default, type, help, metavar, multiple, group, callback) and returns: options