import "../../_dnt.polyfills.js";
export declare const mapHelper: {
    getOrPut<M extends WeakMap<any, any>, K extends $WeakMapKey<M>>(map: M, key: K, putter: (key: K) => $WeakMapVal<M>): $WeakMapVal<M>;
    getOrPut<M_1 extends Map<any, any>, K_1 extends $MapKey<M_1>>(map: M_1, key: K_1, putter: $MapGetOrPutter<M_1, K_1>): $MapVal<M_1>;
    getAndRemove<M_2 extends Map<any, any>, K_2 extends $MapKey<M_2>>(map: M_2, key: K_2): $MapVal<M_2> | undefined;
};
type $MapKey<T> = T extends Map<infer K, any> ? K : never;
type $MapVal<T> = T extends Map<any, infer V> ? V : never;
type $WeakMapKey<T> = T extends WeakMap<infer K extends object, any> ? K : never;
type $WeakMapVal<T> = T extends WeakMap<any, infer V> ? V : never;
type $MapGetOrPutter<M, K> = (key: K) => $MapVal<M>;
export {};
//# sourceMappingURL=mapHelper.d.ts.map