docs: public java.util.List<ReservedCacheNodesOffering> getReservedCacheNodesOfferings() {
          if (reservedCacheNodesOfferings == null) {
              reservedCacheNodesOfferings = new com.amazonaws.internal.SdkInternalList<ReservedCacheNodesOffering>();
          }
          return reservedCacheNodesOfferings;
      }