class_docstr: Raised if an Argument instance is created with invalid or
  inconsistent arguments.
code: def __init__(self, msg, option):
      self.msg = msg
      self.option_id = str(option)
  
imports: import argparse
  import warnings
  import py
  import six
  from _pytest.config.exceptions import UsageError
label_desc: Use image node_id 1 to create a new ArgumentError object from inherited base classes: Exception with example: obj = ArgumentError(msg, option)