docs: public static void executeHelp(String[] args, PrintStream stream) throws Exception {
          String subCmd = (args.length > 0) ? args[0] : "";
          if(subCmd.equals("add")) {
              SubCommandStoreAdd.printHelp(stream);
          } else if(subCmd.equals("update")) {
              SubCommandStoreUpdate.printHelp(stream);
          } else if(subCmd.equals("delete")) {
              SubCommandStoreDelete.printHelp(stream);
          } else if(subCmd.equals("rollback-ro")) {
              SubCommandStoreRollbackReadOnly.printHelp(stream);
          } else if(subCmd.equals("truncate-partition")) {
              SubCommandStoreTruncatePartition.printHelp(stream);
          } else if(subCmd.equals("truncate-store")) {
              SubCommandStoreTruncateStore.printHelp(stream);
          } else {
              printHelp(stream);
          }
      }