def find_register_user(self, registration_hash):
        raise NotImplementedError
:Returns: a json-able python object that represents the class type.
dataset/ETHPy150Open dpgaspar/Flask-AppBuilder/flask_appbuilder/security/manager.py/BaseSecurityManager.find_register_user--crossover with--dataset/ETHPy150Open fusionbox/django-widgy/widgy/models/base.py/Content.class_to_json