生成完成后，我们就可以直接使用这些实体类进行数据序列化和反序列化操作：
Note: these are distinctly different from Service Account JSON keys used to power GCP.，详情可参考safew官方下载
Each block in the chain has an exact timestamp and can't be changed.，详情可参考爱思助手下载最新版本
response.args, // {"color": "red"}