interface EventEmittor<T extends string[]> {
    on(event: T[number], listener: (...args: any[]) => void): this;
    off(event: T[number], listener: (...args: any[]) => void): this;
    emit(event: T[number], ...args: any[]): Promise<boolean>;
}
declare class EventManager<T extends string[]> implements EventEmittor<T> {
    private listeners;
    on(event: T[number], listener: (...args: any[]) => void): this;
    off(event: T[number], listener: (...args: any[]) => void): this;
    emit(event: T[number], ...args: any[]): Promise<boolean>;
}
declare class EventEmittorBase<T extends string[]> implements EventEmittor<T> {
    protected event_manager: EventManager<T>;
    on(event: T[number], listener: (...args: any[]) => void): this;
    off(event: T[number], listener: (...args: any[]) => void): this;
    emit(event: T[number], ...args: any[]): Promise<boolean>;
}

export { type EventEmittor, EventEmittorBase, EventManager };