Sample arguments to AirNow pipeline

database:
  path: /opt/airflow/dags/epa/database.ini
  class: File
connection_name: nsaph
api-key: xxx
parameter_code: pm25
table: airnow_pm25_2018_2020
from: 2018-01-01
to: 2018-06-30
proxy: http://10.240.64.17:3128