class_docstr: Display syntax-highlighted source code.
  
  This uses Pygments to highlight the code for HTML and Latex output.
  
  Parameters
  ----------
  data : str
      The code as a string
  url : str
      A URL to fetch the code from
  filename : str
      A local filename to load the code from
  language : str
      The short name of a Pygments lexer to use for highlighting.
      If not specified, it will guess the lexer based on the filename
      or the code. Available lexers: http://pygments.org/docs/lexers/
code: def __repr__(self):
      return self.data
  
imports: from html import escape
  from os.path import exists, isfile, splitext, abspath, join, isdir
  from os import walk, sep, fsdecode
  from IPython.core.display import DisplayObject, TextDisplayObject
  from typing import Tuple, Iterable, Optional
label_desc: Use image node_id 3 for calling the Code obj's underlying member method code with example usage: obj.__repr__() and returns: self