class_docstr: Base class for parser exceptions including normal exit.
code: def msgs(self) -> Sequence[str]:
      return self._msgs
  
imports: from __future__ import annotations
  import abc
  import argparse
  from typing import Sequence
  from google.generativeai.notebook import ipython_env
label_desc: Use image node_id 4 for calling the _ParserBaseException obj's underlying member method code with example usage: obj.msgs() and returns: self