docs: private static ProClass<MpProcedureTask> loadNpProcedureTaskClass()
      {
          return ProClass
                  .<MpProcedureTask>load("org.voltdb.iv2.NpProcedureTask", "N-Partition",
                          MiscUtils.isPro() ? ProClass.HANDLER_LOG : ProClass.HANDLER_IGNORE)
                  .errorHandler(tmLog::error)
                  .useConstructorFor(Mailbox.class, String.class, TransactionTaskQueue.class,
                          Iv2InitiateTaskMessage.class, Map.class, long.class, boolean.class, int.class);
      }