class_docstr: Base class for decorators to add ArgumentParser information to a method.
      
docstr: Add this object's information to the parser, if necessary.
          
docstr_tok: ["Add","this","object","'s","information","to","the","parser",",","if","necessary","."]
code: def add_to_parser(self, parser, group):
      """Add this object's information to the parser, if necessary."""
      pass
  
imports: import argparse
  import re
  from IPython.core.error import UsageError
  from IPython.utils.decorators import undoc
  from IPython.utils.process import arg_split
  from IPython.utils.text import dedent
label_desc: Use image node_id 2 for calling the ArgDecorator obj's underlying member method code with example usage: obj.add_to_parser(parser, group) without return types