How to use the secretstorage.exceptions function in SecretStorage

def priority(cls):
        with ExceptionRaisedContext() as exc:
            secretstorage.__name__
        if exc:
            raise RuntimeError("SecretStorage required")
        if not hasattr(secretstorage, 'get_default_collection'):
            raise RuntimeError("SecretStorage 1.0 or newer required")
        try:
            bus = secretstorage.dbus_init()
            list(secretstorage.get_all_collections(bus))
        except exceptions.SecretServiceNotAvailableException as e:
            raise RuntimeError(
                "Unable to initialize SecretService: %s" % e)
        return 5

def priority(cls):
        with ExceptionRaisedContext() as exc:
            secretstorage.__name__
        if exc:
            raise RuntimeError("SecretStorage required")
        if not hasattr(secretstorage, 'get_default_collection'):
            raise RuntimeError("SecretStorage 1.0 or newer required")
        try:
            bus = secretstorage.dbus_init()
            list(secretstorage.get_all_collections(bus))
        except exceptions.SecretServiceNotAvailableException as e:
            raise RuntimeError(
                "Unable to initialize SecretService: %s" % e)
        return 5

def priority(cls):
        with ExceptionRaisedContext() as exc:
            secretstorage.__name__
        if exc:
            raise RuntimeError("SecretStorage required")
        if not hasattr(secretstorage, 'get_default_collection'):
            raise RuntimeError("SecretStorage 1.0 or newer required")
        try:
            bus = secretstorage.dbus_init()
            list(secretstorage.get_all_collections(bus))
        except exceptions.SecretServiceNotAvailableException as e:
            raise RuntimeError(
                "Unable to initialize SecretService: %s" % e)
        return 5