export type Listener<T> = (data: T) => void;
export declare class TypedEventTarget<M> {
    private listeners;
    addEventListener<K extends keyof M & string>(type: K, listener: Listener<M[K]>): void;
    removeEventListener<K extends keyof M & string>(type: K, listener: Listener<M[K]>): void;
    protected dispatchEvent<K extends keyof M & string>(type: K, ...[data]: M[K] extends void ? [] : [data: M[K]]): void;
    protected eventActivated(_type: string): void;
    protected eventDeactivated(_type: string): void;
    protected getActiveEvents(): string[];
}