core/homeassistant/components/picnic/services.yaml

add_product:
  fields:
    config_entry_id:
      required: true
      selector:
        config_entry:
          integration: picnic
    product_id:
      required: false
      example: "10510201"
      selector:
        text:
    product_name:
      required: false
      example: "Yoghurt"
      selector:
        text:
    amount:
      required: false
      default: 1
      selector:
        number:
          min: 1
          max: 50