code: public PaymillList<Offer> list(Offer.Filter filter, Offer.Order order, Integer count, Integer offset) {
          return RestfulUtils.list(OfferService.PATH, filter, order, count, offset, Offer.class, super.httpClient);
      }
docs: This function returns a {@link List} of PAYMILL {@link Offer} objects.<br>
  <br>
  In which order this list is returned depends on the optional parameters. If <code>null</code> is given, no
  filter or order will be applied, overriding the default count and offset.
  
  @param filter {@link com.paymill.models.Offer.Filter} or <code>null</code>
  @param order  {@link com.paymill.models.Offer.Order} or <code>null</code>
  @param count  Max {@link Integer} of returned objects in the {@link PaymillList}
  @param offset {@link Integer} to start from.
  @return {@link PaymillList} which contains a {@link List} of PAYMILL {@link Offer}s and their total count.