def serialized(self):
        to_ret = {}
        for group, requirements in self.items():
            to_ret[group] = [str(requirement) for requirement in requirements]
        return to_ret
def visitdir(self, dir):
        dir = normalizerootdir(dir, "visitdir")
        if self._prefix and dir in self._roots:
            return "all"
        return (
            dir in self._roots
            or dir in self._dirs
            or any(parentdir in self._roots for parentdir in util.finddirs(dir))
        )