def __init__(self, database, collection='fs', _connect=True):
        if not isinstance(database, Database):
            raise TypeError(
                repr(database) % "Expected Database, got %s")

        self.delegate = motor.MotorGridFS(database.delegate, collection)
dataset/ETHPy150Open mongodb/motor/synchro/__init__.py/GridFS.__init__/swapped operands of `%`