declare const KEY__WEAKMAP: unique symbol;
/**
 * ### SmartMap
 *
 * Like WeakMap but can also store values using primitive keys
 *
 * * * *
 * Example usage:
 * ```typescript
 * import { SmartMap } from "@thalesrc/js-utils";
 *
 * const aMap = new SmartMap();
 *
 * aMap.set("foo", "foo");
 * aMap.set(1, "thales rocks");
 *
 * console.log(aMap.size) // 2
 *
 * aMap.set({}, "thales rocks again");
 * console.log(aMap.size) // 2
 *
 * const anObject = {};
 * aMap.set(anObject, "thales rocks again and again");
 * console.log(aMap.size) // 3
 * console.log(aMap.get(anObject)) // "thales rocks again and again"
 * ```
 * * * *
 * @template K Typeof Key
 * @template V Typeof Value
 */
export declare class SmartMap<K = any, V = any> extends Map<K, V> {
    /**
     * Symbol refference of weakmap property
     */
    protected static readonly KEY__WEAKMAP: symbol;
    /**
     * Allowed key types to store them in a weakmap instance
     */
    static readonly TYPES_TO_STORE_IN_WEAKMAP: readonly string[];
    /**
     * Returns a boolean whether if the key is storable in weakmap or not
     *
     * @param key Key to check if it can be stored in weakmap
     * @returns A boolean whether if the key is storable in weakmap or not
     */
    protected static isStorableInWeakMap<Key>(key: Key): boolean;
    /**
     * The WeakMap object to store values with associated non-primitive (object) keys
     */
    protected [KEY__WEAKMAP]: WeakMap<NonNullable<K>, V>;
    /**
     * Returns a boolean asserting whether a value has been associated to the key in the SmartMap object or not.
     *
     * @param key The key of the element to test for presence in the SmartMap object.
     * @returns A boolean asserting whether a value has been associated to the key in the SmartMap object or not.
     */
    has(key: K): boolean;
    /**
     * Returns the value associated to the key, or undefined if there is none.
     *
     * @param key The key of the element to return from the SmartMap object.
     * @returns The value associated to the key
     */
    get(key: K): V | undefined;
    /**
     * Sets the value for the key in the SmartMap object.
     *
     * @param key The key of the element to add to the SmartMap object.
     * @param value The value of the element to add to the SmartMap object.
     * @returns Returns the SmartMap object.
     */
    set(key: K, value: V): this;
    /**
     * Removes the associated value from the SmartMap object,
     *
     * @param key The key of the element to remove from the SmartMap object.
     * @returns `true` if an element in the SmartMap object existed and has been removed, or `false` if the element does not exist. `SmartMap.prototype.has(key)` will return false afterwards.
     */
    delete(key: K): boolean;
}
export {};