I won't show you the same code for Runner, but feel free to run through it on your own: just extend IdedTimestampedBase and remove the id property from the Runner.
虽然我不会向您显示Runner中相同的代码，但是您可以随时查看这些代码：扩展IdedTimestampedBase，并删除Runner的id属性。
In the SchemaRequest code snippet below, I demonstrate the creation of a generic SchemaRequest — that is, I neither specified a provider id nor gave a schema id.
下面的SchemaRe quest代码片段显示了一般schemare quest的创建，就是说没有规定提供者ID和模式ID。
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