interface Map<K, V> {
    clear(): void;
    delete(key: K): boolean;
    forEach(callbackfn: (value: V, key: K, map: Map<K, V>) => void, thisArg?: any): void;
    get(key: K): V | undefined;
    has(key: K): boolean;
    set(key: K, value: V): this;
    readonly size: number;
}

interface MapConstructor {
    new (): Map<any, any>;
    new <K, V>(entries?: [K, V][]): Map<K, V>;
    readonly prototype: Map<any, any>;
}
declare var Map: MapConstructor;

interface ReadonlyMap<K, V> {
    forEach(callbackfn: (value: V, key: K, map: ReadonlyMap<K, V>) => void, thisArg?: any): void;
    get(key: K): V|undefined;
    has(key: K): boolean;
    readonly size: number;
}

interface WeakMap<K extends object, V> {
    delete(key: K): boolean;
    get(key: K): V | undefined;
    has(key: K): boolean;
    set(key: K, value: V): this;
}

interface WeakMapConstructor {
    new (): WeakMap<any, any>;
    new <K extends object, V>(entries?: [K, V][]): WeakMap<K, V>;
    readonly prototype: WeakMap<any, any>;
}
declare var WeakMap: WeakMapConstructor;

interface Set<T> {
    add(value: T): this;
    clear(): void;
    delete(value: T): boolean;
    forEach(callbackfn: (value: T, value2: T, set: Set<T>) => void, thisArg?: any): void;
    has(value: T): boolean;
    readonly size: number;
}

interface SetConstructor {
    new (): Set<any>;
    new <T>(values?: T[]): Set<T>;
    readonly prototype: Set<any>;
}
declare var Set: SetConstructor;

interface ReadonlySet<T> {
    forEach(callbackfn: (value: T, value2: T, set: ReadonlySet<T>) => void, thisArg?: any): void;
    has(value: T): boolean;
    readonly size: number;
}

interface WeakSet<T> {
    add(value: T): this;
    delete(value: T): boolean;
    has(value: T): boolean;
}

interface WeakSetConstructor {
    new (): WeakSet<any>;
    new <T>(values?: T[]): WeakSet<T>;
    readonly prototype: WeakSet<any>;
}
declare var WeakSet: WeakSetConstructor;
