import type { PageRef } from '../registry.js';
/**
 * If the caller requested an after-action snapshot, run the snapshot
 * and attach it to the result. Returns the result augmented with
 * `snapshot` if requested, or the result unchanged otherwise.
 *
 * Supports compact (strips bbox/selector) and limit (max elements) filters
 * via the params object.
 */
export declare function maybeSnapshot<T extends Record<string, unknown>>(result: T, ref: PageRef, params: Record<string, unknown>): Promise<T & {
    snapshot?: unknown;
}>;
//# sourceMappingURL=snapshot-helper.d.ts.map