import { Any, AnyObject, Options } from "../../../types";
interface InputExpr {
    readonly field: string;
    readonly input: AnyObject;
    readonly value: Any;
}
/**
 * Adds, updates, or removes a specified field in a document.
 */
export declare const $unsetField: (obj: AnyObject, expr: InputExpr, options: Options) => Any;
export {};