/**
 * Tracks failed relationship annotations for retry.
 */
export declare class RelationshipRetryQueue {
    private failures;
    private key;
    add(fromId: number, toId: number, error: string): void;
    getRetryable(maxAttempts?: number): Array<{
        fromId: number;
        toId: number;
    }>;
    clear(): void;
    get size(): number;
}
//# sourceMappingURL=retry-queue.d.ts.map