export type ReferenceRange = {
    first?: number;
    last?: number;
};
export type ReferenceReconciliation = {
    sourceFirst?: number;
    sourceLast?: number;
    cursorSeq?: number;
    firstSeqSeen?: number;
    headMissing?: number;
    behind?: number;
    status: 'aligned' | 'gap' | 'unknown';
    reason?: string;
};
export declare function reconcileReferenceSequence(args: {
    source: ReferenceRange | undefined;
    cursorSeq?: number;
    firstSeqSeen?: number;
}): ReferenceReconciliation;