/**
 * Calculates the set difference (self \ other), returning elements present in `self` but not in `other`.
 *
 * @returns {Set<T>} A new Set containing elements present in `self` but not in `other`
 */
export declare function Difference<T>(self: Set<T>, other: Set<T>): Set<T>;
/**
 * Calculates the set intersection (self ∩ other), returning elements common to both sets.
 *
 * @returns {Set<T>} A new Set containing elements present in both `self` and `other`
 */
export declare function Intersection<T>(self: Set<T>, other: Set<T>): Set<T>;