docs: public void initComponent(EurekaInstanceConfig config,
                                EurekaClientConfig eurekaConfig, AbstractDiscoveryClientOptionalArgs args) {
          this.eurekaInstanceConfig = config;
          this.eurekaClientConfig = eurekaConfig;
          if (ApplicationInfoManager.getInstance().getInfo() == null) {
              // Initialize application info
              ApplicationInfoManager.getInstance().initComponent(config);
          }
          InstanceInfo info = ApplicationInfoManager.getInstance().getInfo();
          discoveryClient = new DiscoveryClient(info, eurekaConfig, args);
      }