import type { ParsedLine } from "../conversation-normalisers/types.js";
export type CursorResult = {
    kind: "found";
    deltaStart: number;
} | {
    kind: "empty";
} | {
    kind: "missing";
};
export declare function findDeltaCursor(parsedLines: readonly ParsedLine[], lastIngestedMessageHash: string): CursorResult;
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