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我知道它现在没有处理，但它阻止了我能够针对训练有素的 OneHotEncoder / Pipeline 以实时方式（如在实时 API 服务中）对特征进行编码。
如果碰巧需要对以前从未见过的东西进行编码，人们如何解决需要实时编码数据的问题？
谢谢