I want to enforce max_active_tis_per_dagrun=1 in a subclassed operator.

Tried these approaches:

class BetterKubernetesPodOperator(KubernetesPodOperator):
    def __init__(self, **kwargs) -> None:
        _kwargs = kwargs | { "max_active_tis_per_dagrun": 1 }
        super().__init__(**_kwargs)

class EvenBetterKubernetesPodOperator(KubernetesPodOperator):
    def __init__(self, **kwargs) -> None:
        super().__init__(**kwargs)
        self.max_active_tis_per_dagrun = 1

However neither seems to work. The only way is to pass it explicitly when instantiating operator:

op = BetterKubernetesPodOperator(task_id="my_task", max_active_tis_per_dagrun=1, ...)

But I don’t want to remember about it every time. How can I have it on subclass?