def call_extra(self, methods, kwargs):
        """ Call the hook with some additional temporarily participating
        methods using the specified kwargs as call parameters. """
        old = list(self._nonwrappers), list(self._wrappers)
        for method in methods:
            opts = dict(hookwrapper=False, trylast=False, tryfirst=False)
            hookimpl = HookImpl(None, "<temp>", method, opts)
            self._add_hookimpl(hookimpl)
        try:
            return self(**kwargs)
        finally:
            self._nonwrappers, self._wrappers = old
Call the hook with some additional temporarily participating
        methods using the specified kwargs as call parameters.