Yan

Use Error to replace unknown for the parse and stringify method of Json

2

# WHAT The underlying method `parse` and `stringify` of [JSON](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON) will throw an error if the [JSON is invalid](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse#exceptions) or [failed to stringify](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#exceptions). In most use cases, we will pipe...