class_docstr: A base class for sidebars using Text.
docstr: Initialize the sidebar's widgets, returning the main widget.
docstr_tok: ["Initialize","the","sidebar","'s","widgets",",","returning","the","main","widget","."]
code: def init_widgets(self):
      """Initialize the sidebar's widgets, returning the main widget."""
      raise NotImplementedError
  
imports: import contextlib
  import functools
  import itertools
  import tkinter
  from tkinter.font import Font
  from idlelib.config import idleConf
  from idlelib.delegator import Delegator
  from idlelib import macosx
label_desc: Use image node_id 2 for calling the BaseSideBar obj's underlying member method code with example usage: obj.init_widgets() without return types