class_docstr: Docstring modification.
  
  Parameters
  ----------
  docstring : str
      The docstring to modify.
class_docstr_tok: ["Docstring","modification",".","Parameters","--","--","--","--","--","docstring",":","str","The","docstring","to","modify","."]
code: def __init__(self, docstring):
      self._ds = None
      self._docstring = docstring
      if docstring is None:
          return
      self._ds = NumpyDocString(docstring)
  
imports: from collections import namedtuple
  from collections.abc import Mapping
  import copy
  import inspect
  import re
  import textwrap
  from statsmodels.tools.sm_exceptions import ParseError
label_desc: Use image node_id 1 to create a new Docstring object  with example: obj = Docstring(docstring)