import { HashSet } from "@tsplus/stdlib/collections/HashSet/definition";
/**
 * Marks the `HashSet` as mutable.
 * @tsplus getter HashSet beginMutation
 * @tsplus location "@tsplus/stdlib/collections/HashSet/operations/beginMutation"
 */
export declare function beginMutation<A>(self: HashSet<A>): HashSet<A>;
//# sourceMappingURL=beginMutation.d.ts.map