interface FetchParams {
    accountId: string;
    mailbox?: string;
    since_uid?: number;
}
/**
 * List new inbox messages since a UID high-water mark, without writing to
 * the graph. Caches the batch in-memory so a follow-up email-ingest call
 * can apply operator decisions.
 *
 * No classification, no embeddings, no graph writes. The operator triages
 * by eye from the returned summary.
 */
export declare function emailFetch(params: FetchParams): Promise<string>;
export {};
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