docs: public boolean sendMasterQuestion(Address toAddress) {
          checkNotNull(toAddress, "No endpoint is specified!");
  
          BuildInfo buildInfo = node.getBuildInfo();
          Address thisAddress = node.getThisAddress();
          JoinMessage joinMessage = new JoinMessage(Packet.VERSION, buildInfo.getBuildNumber(), node.getVersion(),
                  thisAddress, clusterService.getThisUuid(), node.isLiteMember(), node.createConfigCheck());
          return nodeEngine.getOperationService().send(new WhoisMasterOp(joinMessage), toAddress);
      }