Method _write

packages/core/test/router/router-response-controller.spec.ts:299–306

(
          chunk: any,
          encoding: string,
          callback: (error?: Error | null) => void,
        )

        private readonly chunks: string[] = [];

        _write(
          chunk: any,
          encoding: string,
          callback: (error?: Error | null) => void,
        ): void {
          this.chunks.push(chunk);
          callback();
        }

        get content() {
          return this.chunks.join('');