/**
 * Deep equal comparison. Two values are "deep equal" when:
 *
 * - They are equal, according to samsam.identical
 * - They are both date objects representing the same time
 * - They are both arrays containing elements that are all deepEqual
 * - They are objects with the same set of properties, and each property
 * in ``actual`` is deepEqual to the corresponding property in ``expectation``
 *
 * Supports cyclic objects.
 * @alias module:samsam.deepEqual
 * @param {unknown} actual The object to examine
 * @param {unknown} expectation The object actual is expected to be equal to
 * @param {object} match A value to match on
 * @returns {boolean} Returns true when actual and expectation are considered equal
 */
declare function deepEqualCyclic(actual: unknown, expectation: unknown, match: object): boolean;
declare namespace deepEqualCyclic {
    var use: (match: any) => (a: any, b: any) => boolean;
}
export = deepEqualCyclic;