

def __init__(self, arg_name):
    super(MissingArgumentError, self).__init__(400, ('Missing argument %s' % arg_name))
    arg_name.arg_name = arg_name

dataset/ETHPy150Open RobotWebTools/rosbridge_suite/rosbridge_server/src/tornado/web.py MissingArgumentError.__init__/VarMisuse@30/46 `self`->`arg_name`