How To Extend The Interfaces In The AI Module

[Ikuzweshema]

import "ai";

declare module "ai" {
  interface FilePart {
    id?: string;
  }
}

I tried to extend the File part Interface but it din't work Because the Filepart interface is not exported in the module

Becaue i Thought this can help in dealing with files, like when generating the Ui state from ai state you should know the id of the file.
If there is another way to do it Please tell me