code: private synchronized void checkInitialization() throws DevFailed {
          if (initImpl != null) {
              isInitializing = initImpl.isInitInProgress();
          } else {
              isInitializing = false;
          }
          if (isInitializing) {
              throw DevFailedUtils.newDevFailed("CONCURRENT_ERROR", name + " in Init command ");
          }
      }
docs: Check if an init is in progress
  
  @throws DevFailed if init is init progress