/**
 * @ignore
 */
export declare type IKey<T> = {
    [K in keyof T]: T[K] extends (...args: any[]) => any ? K : never;
}[keyof T];
/**
 * @ignore
 */
export declare class Subscribe<T extends {}> {
    map: Map<{ [K in keyof T]: T[K] extends (...args: any[]) => any ? K : never; }[keyof T], T[{ [K in keyof T]: T[K] extends (...args: any[]) => any ? K : never; }[keyof T]][]>;
    constructor();
    on<K extends IKey<T>>(type: K, event: T[K]): void;
    once<K extends IKey<T>>(type: K, event: T[K]): void;
    off<K extends IKey<T>>(type: K, event: T[K]): void;
    emit<K extends IKey<T>>(type: K, args: Parameters<T[K]>): void;
}