def add(self, store_key, *args, **kwargs):
    '\n        Sign up a subscriber to this ticker.\n        Args:\n            store_key (str): Unique storage hash for this ticker subscription.\n            args (any, optional): Arguments to call the hook method with.\n\n        Kwargs:\n            _start_delay (int): If set, this will be\n                used to delay the start of the trigger instead of\n                `interval`.\n\n        '
    if self._is_ticking:
        self._to_start.append((store_key, (args, kwargs)))
    else:
        start_delay = kwargs.pop('_start_delay', None)
        self.subscriptions[store_key] = (args, kwargs)
        self.validate(start_delay=start_delay)
Sign up a subscriber to this ticker.
Args:
    store_key (str): Unique storage hash for this ticker subscription.
    args (any, optional): Arguments to call the hook method with.

Kwargs:
    _start_delay (int): If set, this will be
        used to delay the start of the trigger instead of
        `interval`.
def add(self, store_key, *args, **kwargs):
    '\n        Sign up a subscriber to this ticker.\n        Args:\n            store_key (str): Unique storage hash for this ticker subscription.\n            args (any, optional): Arguments to call the hook method with.\n\n        Kwargs:\n            _start_delay (int): If set, this will be\n                used to delay the start of the trigger instead of\n                `interval`.\n\n        '
    if self._is_ticking:
        self._to_start.append((store_key, (args, kwargs)))
    else:
        start_delay = kwargs.pop('_start_delay', None)
        self.subscriptions[store_key] = (args, kwargs)
        self.validate(start_delay=start_delay)