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
"""
        Set ``is_active=False`` on the DAGs for which the DAG files have been removed.
        Additionally change ``is_active=False`` to ``True`` if the DAG file exists.
        :param alive_dag_filelocs: file paths of alive DAGs
        :param session: ORM Session
        """
        log.debug("Deactivating DAGs (for which DAG files are deleted) from %s table ", cls.__tablename__)
        dag_models = session.query(cls).all()
        for dag_model in dag_models:
            if dag_model.fileloc is not None:
                if correct_maybe_zipped(dag_model.fileloc) not in alive_dag_filelocs:
                    dag_model.is_active = False
                else:
                    
                    
                    if not dag_model.is_active:
                        dag_model.is_active = True
            else:
                continue
    @classmethod
    def dags_needing_dagruns(cls, session: Session):