code: public SubscriptionScheduleRevisionCollection revisions(
        Map<String, Object> params, RequestOptions options) throws StripeException {
      String url =
          String.format(
              "%s%s",
              Stripe.getApiBase(),
              String.format(
                  "/v1/subscription_schedules/%s/revisions", ApiResource.urlEncodeId(this.getId())));
      return requestCollection(url, params, SubscriptionScheduleRevisionCollection.class, options);
    }
docs: Retrieves the list of subscription schedule revisions for a subscription schedule.