Method _final

packages/utils/nodePlatform.ts:166–170

(callback: (error?: Error | null) => void)

  }

  override async _final(callback: (error?: Error | null) => void) {
    // Stream might be destroyed after the connection was closed.
    const error = await this._channel.close().catch(e => e);
    callback(error || null);
  }
}