child.py

from prefect import Flow, Parameter, task


@task(log_stdout=True)
def test_parameter_value(user_input: str):
    print(f"Got parameter value: {user_input}")


with Flow('child') as flow:
    num_days_parameter = Parameter('num_days', required=True)
    num_back_fill_days_parameter = Parameter('num_back_fill_days', required=True)
    end_date_parameter = Parameter('end_date', required=True)
    test_parameter_value(num_days_parameter)
    test_parameter_value(num_back_fill_days_parameter)
    test_parameter_value(end_date_parameter)