{"body":"from pydantic import BaseModel\n\nclass UserV1(BaseModel):\n    id: int\n    name: str\n\nclass UserV2(UserV1):\n    email: str | None = None\n\nUser = UserV2 | UserV1\n","name":"","extension":"txt","url":"https://www.irccloud.com/pastebin/CTpi6Xwg","modified":1772749454,"id":"CTpi6Xwg","size":159,"lines":10,"own_paste":false,"theme":"","date":1772749454}