'Deserialize a decoded JSON document.
:param jobj: Python object, composed of only other basic data
types, as decoded from JSON document. Not necessarily
:class:`dict` (as decoded from "JSON object" document).
:raises acme.jose.errors.DeserializationError:
if decoding was unsuccessful, e.g. in case of unparseable
X509 certificate, or wrong padding in JOSE base64 encoded
string, etc.'

@util.abstractclassmethod
def from_json(cls, jobj):

    return cls()
