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    Interface FetchedDocument

    A document the source fetched, with everything needed to record its provenance.

    interface FetchedDocument {
        bytes: Buffer;
        retrievedAt?: string;
        role: "question_pdf" | "answer_pdf" | "combined_pdf" | "metadata";
        url: string;
        urlStable: boolean;
    }
    Index
    bytes: Buffer
    retrievedAt?: string

    ISO-8601 UTC instant recorded at fetch time, not at extraction time.

    role: "question_pdf" | "answer_pdf" | "combined_pdf" | "metadata"
    url: string
    urlStable: boolean

    False when the upstream URL is known not to be durable (expiring links).