import { HashMap } from "@tsplus/stdlib/collections/HashMap/definition";
/**
 * Updates the value of the specified key within the `HashMap` if it exists.
 * @tsplus static HashMap.Aspects update
 * @tsplus pipeable HashMap update
 * @tsplus location "@tsplus/stdlib/collections/HashMap/operations/update"
 */
export declare function update<K, V>(key: K, f: (v: V) => V): (self: HashMap<K, V>) => HashMap<K, V>;
//# sourceMappingURL=update.d.ts.map