'This extension defines policies in CA certificates under which
certificates may be issued. In end-entity certificates, the inclusion
of a policy indicates the issuance of the certificate follows the
policy.
:return:
None or a CertificatePolicies object'

@property
def certificate_policies_value(self):

    if (not self._processed_extensions):
        self._set_extensions()
    return self._certificate_policies_value
