with DAG(
    dag_id=Path(__file__).stem,
    description=__doc__[0 : __doc__.find(".")],
    doc_md=__doc__,
    schedule=None,
    start_date=datetime.datetime(2022, 3, 4),
    catchup=False,
    tags=["example_ui"],
    params={
        "array_of_numbers": Param(
            [1, 2, 3],
            "Only integers are accepted in this array",
            type="array",
            title="Array of numbers",
            items={"type": "number"},
        ),
    },
) as dag:

    @task(task_id="show_params")
    def show_params(**kwargs) -> None:
        ti: TaskInstance = kwargs["ti"]
        dag_run: DagRun = ti.dag_run
        if not dag_run.conf:
            print("Uups, no parameters supplied as DagRun.conf, was the trigger w/o form?")
            raise AirflowSkipException("No DagRun.conf parameters supplied.")
        print(f"This DAG was triggered with the following parameters:\n{json.dumps(dag_run.conf, indent=4)}")

    show_params()