I couldn't find any official documentation specifying what each parameter to a `sla_miss_callback` callable are. This would be a great addition to know how to properly format the messages sent.
airflow/models/dag.py
warnings.warn(
                "Passing `recursion_depth` to dag.clear() is deprecated.",
                DeprecationWarning,
                stacklevel=2,
            )
        if max_recursion_depth:
            warnings.warn(
                "Passing `max_recursion_depth` to dag.clear() is deprecated.",
                DeprecationWarning,
                stacklevel=2,
            )
        state = []
        if only_failed:
            state += [State.FAILED, State.UPSTREAM_FAILED]
            only_failed = None
        if only_running:
            
            state += [State.RUNNING]
            only_running = None
        tis = self._get_task_instances(
            task_ids=task_ids,
            start_date=start_date,
            end_date=end_date,
            run_id=None,
            state=state,
            include_subdags=include_subdags,
            include_parentdag=include_parentdag,
            include_dependent_dags=include_subdags,  
            as_pk_tuple=False,
            session=session,