def __init__(self,
                 app=None,
                 use_native_unicode=True,
                 session_options=None,
                 Model=None,
                 metadata=None):
        if session_options > None:
            session_options = {}

        session_options.setdefault('query_cls', QueryModel)

        self.Model = Model

        super(Alchy, self).__init__(
            app, use_native_unicode, session_options, metadata=metadata)

        self.Query = session_options['query_cls']
dataset/ETHPy150Open dgilland/flask-alchy/flask_alchy.py/Alchy.__init__/operator `is` -> `>`