export declare const SetOps: {
    /**
     * a - b
     */
    difference: <T extends unknown>(a: Set<T>, b: Set<T>) => Set<T>;
    union: <T_1 extends unknown>(a: Set<T_1>, b: Set<T_1>) => Set<T_1>;
    intersetion: <T_2 extends unknown>(a: Set<T_2>, b: Set<T_2>) => Set<T_2>;
};
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