def save_verifier(self, request_token, verifier):
        raise NotImplementedError("Must be implemented by inheriting classes")
Handle command line flags unique to this script.
dataset/ETHPy150Open ib-lundgren/flask-oauthprovider/flask_oauthprovider.py/OAuthProvider.save_verifier--crossover with--dataset/ETHPy150Open google/gfw-toolkit/toolkit/cmds/add_user.py/AddFlags