How to use the @nestjs/core/adapters/express-adapter.ExpressAdapter function in @nestjs/core

private applyExpressAdapter(httpAdapter: HttpServer): HttpServer {
    const isAdapter = !!httpAdapter.getHttpServer;
    if (isAdapter) {
      return httpAdapter;
    }
    return new ExpressAdapter(httpAdapter);
  }
}

applyExpressAdapter(httpAdapter) {
        const isAdapter = !!httpAdapter.getHttpServer;
        if (isAdapter) {
            return httpAdapter;
        }
        return new express_adapter_1.ExpressAdapter(httpAdapter);
    }
}

applyExpressAdapter(httpAdapter) {
        const isAdapter = httpAdapter.getHttpServer;
        if (isAdapter) {
            return httpAdapter;
        }
        return new express_adapter_1.ExpressAdapter(httpAdapter);
    }
    applyLogger(options) {

applyExpressAdapter(httpAdapter) {
        const isAdapter = !!httpAdapter.getHttpServer;
        if (isAdapter) {
            return httpAdapter;
        }
        return new express_adapter_1.ExpressAdapter(httpAdapter);
    }
}