/**
 * Aggregate-only migration telemetry.
 *
 * These counters deliberately contain no wallet, note, commitment, amount,
 * mint, cursor, transaction, timestamp, or device identifiers. Callers may
 * keep them locally or combine them into coarse operational metrics; the SDK
 * never uploads them.
 */
export type NoteCipherVersion = "wallet-v1" | "view-v2";
export interface NoteCipherScanTelemetry {
    schemaVersion: 1;
    cipherVersion: NoteCipherVersion;
    rowsExamined: number;
    malformedRows: number;
    viewTagMatches: number;
    decryptionsSucceeded: number;
    commitmentMismatches: number;
    matchedNotes: number;
}
export declare function createNoteCipherScanTelemetry(cipherVersion: NoteCipherVersion): NoteCipherScanTelemetry;
/** Return a detached snapshot so callbacks cannot mutate the active scan. */
export declare function snapshotNoteCipherScanTelemetry(telemetry: NoteCipherScanTelemetry): NoteCipherScanTelemetry;