else:
                
                
                
                
                
                data_interval_end = dag.get_run_data_interval(self).end
                true_delay = first_start_date - data_interval_end
                if true_delay.total_seconds() > 0:
                    Stats.timing(
                        f"dagrun.{dag.dag_id}.first_task_scheduling_delay", true_delay, tags=self.stats_tags
                    )
                    Stats.timing("dagrun.first_task_scheduling_delay", true_delay, tags=self.stats_tags)
        except Exception:
            self.log.warning("Failed to record first_task_scheduling_delay metric:", exc_info=True)
    def _emit_duration_stats_for_finished_state(self):
        if self.state == State.RUNNING:
            return
        if self.start_date is None:
            self.log.warning("Failed to record duration of %s: start_date is not set.", self)
            return
        if self.end_date is None:
            self.log.warning("Failed to record duration of %s: end_date is not set.", self)
            return
        duration = self.end_date - self.start_date
        timer_params = {"dt": duration, "tags": self.stats_tags}
        Stats.timing(f"dagrun.duration.{self.state.value}.{self.dag_id}", **timer_params)
        Stats.timing(f"dagrun.duration.{self.state.value}", **timer_params)
    @provide_session
    def verify_integrity(self, *, session: Session = NEW_SESSION) -> None: