def clean(self):
        raise NotImplementedError()
Check if this NID_pkcs7_enveloped object
dataset/ETHPy150Open ceph/ceph-deploy/ceph_deploy/util/pkg_managers.py/PackageManager.clean--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/pyopenssl/OpenSSL/crypto.py/PKCS7.type_is_enveloped