import { Any, AnyObject, Options } from "../../types";
import { WindowOperatorInput } from "./_internal";
/**
 * Returns the value from an expression applied to a document in a specified
 * position relative to the current document in the $setWindowFields stage partition.
 */
export declare const $shift: (obj: AnyObject, coll: AnyObject[], expr: WindowOperatorInput, options: Options) => Any;