import SetIterable from '../SetIterable';
import { IndexedSelector } from '../IndexedSelector';
import { EqualityComparer } from '../comparer/EqualityComparer';
declare module '../Enumerable' {
    interface Enumerable<T> {
        toSet<T>(this: Enumerable<T>, equalityComparer?: EqualityComparer<T>): SetIterable<T>;
        toSet<T, TKey>(this: Enumerable<T>, keySelector: IndexedSelector<T, TKey>, equalityComparer?: EqualityComparer<TKey>): SetIterable<TKey>;
    }
}