type Listener<Args extends unknown[]> = (...args: Args) => void;
export declare class Emitter<EventToArgs extends Record<Event, unknown[]> = Record<string | number | symbol, unknown[]>, Event extends string | number | symbol = keyof EventToArgs> {
    private map;
    get [Symbol.toStringTag](): string;
    on<T extends Event>(event: T, listener: Listener<EventToArgs[T]>): () => void;
    once<T extends Event>(event: T, listener: Listener<EventToArgs[T]>): () => void;
    emit<T extends Event>(event: T, ...args: EventToArgs[T]): void;
    removeAllListeners<T extends Event>(event: T): void;
}
export {};