アクション リンクを指定する（従来版）

  // Predetermined type of action associated with an action link.
  enum ActionLinkType {
    // The action link type is unspecified.
    ACTION_LINK_TYPE_UNSPECIFIED = 0;

    // The action link type is booking an appointment.
    ACTION_LINK_TYPE_BOOK_APPOINTMENT = 1;

    // The action link type is booking an online appointment.
    ACTION_LINK_TYPE_BOOK_ONLINE_APPOINTMENT = 2;

    // The action link type is ordering food for delivery or takeout or both.
    ACTION_LINK_TYPE_ORDER_FOOD = 3;

    // The action link type is ordering food for delivery.
    ACTION_LINK_TYPE_ORDER_FOOD_DELIVERY = 4;

    // The action link type is ordering food for takeout.
    ACTION_LINK_TYPE_ORDER_FOOD_TAKEOUT = 5;

    // The action link type is making a dining reservation.
    ACTION_LINK_TYPE_MAKE_DINING_RESERVATION = 6;

    // The action link type allows users to shop from the given merchant. It
    // could either be delivery or pickup.
    ACTION_LINK_TYPE_SHOP_ONLINE = 7;
  }

  enum ServiceType {
    SERVICE_TYPE_UNSPECIFIED = 0;

    // Service that provides dining reservation.
    SERVICE_TYPE_DINING_RESERVATION = 1;

    // Service that provides food ordering in general, could be either takeout
    // or delivery or both.
    SERVICE_TYPE_FOOD_ORDERING = 2;

    // Service that only provides food delivery.
    SERVICE_TYPE_FOOD_DELIVERY = 6;

    // Service that only provides food takeout.
    SERVICE_TYPE_FOOD_TAKEOUT = 7;

    // Services that provide event based ticketing (e.g. concerts, sporting
    // events, shows). Do not use for Reserve with Google integrations.
    SERVICE_TYPE_EVENT_TICKET = 3;
    SERVICE_TYPE_TRIP_TOUR = 4;

    // Service that provides appointments or classes. Recommended for (1) health
    // and fitness, (2) spa and beauty, and (3) financial consults and
    // evaluations services. Please see the supported service types:
    // https://developers.google.com/maps-booking/guides/end-to-end-integration/overview
    SERVICE_TYPE_APPOINTMENT = 5;

    // Service that provides appointment for an online class or session which
    // will be fully virtual. Must be set if enabling virtual service bookings.
    SERVICE_TYPE_ONLINE_APPOINTMENT = 8;

    // Service that allows users to shop from the given merchant. It could
    // either be delivery or pickup.
    SERVICE_TYPE_SHOPPING = 9;
  }