def __missing__(self, key):
        if self.default_factory is None:
            raise KeyError(key)
        else:
            ret = self[key] = self.default_factory(name=key)
            return ret
def install_autopkgtest_results_formatter():
    subprocess.check_call(
        ["sudo", "snap", "install", "autopkgtest-results-formatter", "--edge"]
    )