import { PipelineOperator } from "../../core";
/**
 * Replaces a document with the specified embedded document or new one.
 * The replacement document can be any valid expression that resolves to a document.
 *
 * See {@link https://docs.mongodb.com/manual/reference/operator/aggregation/replaceRoot/ usage}.
 *
 * @param collection
 * @param expr
 * @param options
 * @returns
 */
export declare const $replaceRoot: PipelineOperator;