@staticmethod
    def from_file(filename):
        return IntrinsicParameters.from_dict(json.load(open(filename)))
:param issuer: Who issued the keys
dataset/ETHPy150Open seanbell/intrinsic/bell2014/params.py/IntrinsicParameters.from_file--crossover with--dataset/ETHPy150Open rohe/pyoidc/src/oic/utils/keyio.py/KeyJar.add