def start(self, args):
        # Add a help command line argument if needed (i.e. -h and --help)
        self._add_help()
        # Add a version command line argument if needed (i.e. -v and --version)
        self._add_version()

        self._raw_args = args
        self._context['raw_args'] = args
        self._do_args(args[1:])

        if self._has_main:
            return self._main(self._context)
        return self._context
If-Unmodified-Since is a valid date?
dataset/ETHPy150Open kbknapp/Clapp-py/clapp/clapp.py/SubCommand.start--crossover with--dataset/ETHPy150Open benoitc/dj-webmachine/webmachine/decisions.py/h11