docs: void increment() {
          long id = rand.nextInt(config.tuples);
          long toIncrement = rand.nextInt(5); // 0 - 4
  
          try {
              client.callProcedure(new CMCallback(), "Increment", toIncrement, id);
          }
          catch (IOException e) {
              // This is not ideal error handling for production, but should be
              // harmless in a benchmark like this
              try { Thread.sleep(50); } catch (Exception e2) {}
          }
      }