class PtcDRFactory_2_4_Pause(DRFactory_2_4):
    def setup_tables(self, model):
        active_dag = self.active_dag(model)
        return [active_dag]

from airflow import DAG
from ... import PtcDRFactory_2_4_Pause

the_pause_dag = PtcDRFactory_2_4_Pause(
    dag_id="utility_pause_active_dags",
    path_prefix="backup_metadata",
    storage_type='local_fs,'
).create_backup_dag()

class PtcDRFactory_2_4_Pause(DRFactory_2_4):
    def setup_tables(self, model):
        active_dag = self.active_dag(model)
        xcom = self.xcom(model)
        task_instance = self.task_instance(model)
        return [active_dag, xcom, task_instance]

    def create_backup_dag(self) -> DAG:
        ...

        with TaskGroup(group_id="export_tables", dag=dag) as export_tables_t:
            export_tasks = {}
            for table in self.tables():
                if table.name != "xcom":
                    export_task = PythonOperator(
                        task_id=f"export_{table.name}s",
                        python_callable=table.backup,
                        dag=dag,
                    )
                    export_tasks[table.name] = export_task

            xcom_task = PythonOperator(
                task_id="export_xcoms",
                python_callable=[
                    table.backup for table in self.tables() if table.name == "xcom" <<<<<
                ][0],
                dag=dag,
            )
            xcom_task >> export_tasks["task_instance"] <<<<<