docs: public synchronized void loadConfig(String filePath) throws Exception {
  
          if (isLoaded) {
              return;
          }
  
          String filePathInternal = filename;
  
          if (filePath != null) {
  
              filePathInternal = filePath;
          }
  
          DisconfAutowareConfig.autowareConfig(INSTANCE, filePathInternal);
  
          isLoaded = true;
      }