code: def __doc__(self):
      opts_desc = _describe_option("all", _print_desc=False)
      opts_list = pp_options_list(list(_registered_options.keys()))
      return self.__doc_tmpl__.format(
          opts_desc=opts_desc, opts_list=opts_list
      )
  
imports: from collections import namedtuple
  from contextlib import contextmanager
  import re
  import warnings
  import pandas.compat
  from pandas.compat import lmap, map, u
label_desc: Use image node_id 3 for calling the CallableDynamicDoc obj's underlying member method code with example usage: obj.__doc__() and returns: self