# flush method Null safety

void flush(

1. String? appId

)

## Implementation

    void flush(String? appId) {
      bookletRepository(appId)!.flush();
      decoratedContentRepository(appId)!.flush();
      dividerRepository(appId)!.flush();
      documentRepository(appId)!.flush();
      dynamicWidgetRepository(appId)!.flush();
      faderRepository(appId)!.flush();
      gridRepository(appId)!.flush();
      presentationRepository(appId)!.flush();
      simpleImageRepository(appId)!.flush();
      simpleTextRepository(appId)!.flush();
      tutorialRepository(appId)!.flush();
    }