docs: public void setCompleters(List<Completer> completers) {
          for (Completer completer : consoleReader.getCompleters()) {
              consoleReader.removeCompleter(completer);
          }
          if (Iterables.size(completers) > 1) {
              Completer completer = new AggregateCompleter(completers);
              consoleReader.addCompleter(completer);
          }
          for (Completer completer : completers) {
              consoleReader.addCompleter(completer);
          }
      }