Function isExpressResponse

packages/nestjs/src/index.ts:230–235

* Type guard for Express with unique checks

(res: unknown)

 * Type guard for Express with unique checks
 */
function isExpressResponse(res: unknown): res is ExpressResponse {
  return (
    typeof (res as ExpressResponse)?.status === "function" &&
    typeof (res as ExpressResponse)?.render === "function"
  );
}

/**
 * Type guard for Fastify with unique checks