@property
    def key_name(self):
        return '{}.{}.date'.format(self.board_id, self.list_id)
Windowing function from:
dataset/ETHPy150Open StackStorm/st2contrib/packs/trello/sensors/list_actions_sensor.py/TrelloList.key_name--crossover with--dataset/ETHPy150Open bolme/pyvision/src/pyvision/util/windows.py/hammingWindow