docs: public void setRegistrationConfig(RegistrationConfig registrationConfig) {
          this.registrationConfig = registrationConfig;
  
          if (registrationConfig.getDefaultConfig()!=null) {
              for (String key : registrationConfig.getDefaultConfig().keySet()) {
                  dynamicConfig.put(key, registrationConfig.getDefaultConfig().get(key));
              }
          }
      }