code: public void delete(Offer offer, boolean removeWithSubscriptions) {
          ParameterMap<String, String> params = new ParameterMap<String, String>();
          params.add("remove_with_subscriptions", String.valueOf(removeWithSubscriptions));
          RestfulUtils.delete(OfferService.PATH, offer, params, Offer.class, super.httpClient);
      }
docs: Remove an offer.
  
  @param offer                   the {@link Offer}.
  @param removeWithSubscriptions if true, the plan and all subscriptions associated with it will be deleted. If
  false, only the plan will be deleted.