import { List } from './list.js';

/** A {@link Map} that can contain multiple values for the same key */
declare class MultiMap<K, V> extends Map<K, List<V>> {
    /**
     * Adds a new element with a specified key and value to the MultiMap.
     * If an element with the same key already exists, the value will be added to the underlying {@link List}.
     *
     * @override
     * @param {K} key The key to set.
     * @param {V} value The value to add to the MultiMap
     * @returns {MultiMap<K, V>} The MultiMap with the updated key and value.
     */
    set(key: K, value: V): MultiMap<K, V>;
    get [Symbol.toStringTag](): string;
}

export { MultiMap };