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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
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# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
from __future__ import annotations

from datetime import datetime

from airflow.models import DAG
from airflow.providers.standard.operators.python import PythonOperator
from airflow.sdk.definitions.param import Param

with DAG(
    "test_invalid_param2",
    start_date=datetime(2021, 1, 1),
    schedule="0 0 * * *",
    params={
        # a mandatory str param but pass None as value which is invalid
        "str_param": Param(default=None, type="string", minLength=2, maxLength=4),
    },
) as the_dag:

    def print_these(*params):
        for param in params:
            print(param)

    PythonOperator(
        task_id="ref_params",
        python_callable=print_these,
        op_args=[
            "{{ params.str_param }}",
        ],
    )
