type HandlerOptions = {
    once?: boolean;
};
type RemoveHandler = () => void;
type Callback<T> = (event: T) => void;
type Detail<K, T extends keyof K> = {
    type: T;
    detail: K[T];
};
type Constructor<T = {}> = new (...args: any[]) => T;
export declare function EventEmitterMixin<Events = {}, T extends Constructor = Constructor>(Base: T): {
    new (...args: any[]): {
        _handlers: { [T_1 in keyof Events]?: {
            callback: Callback<Events[T_1]>;
            once?: boolean;
        }[]; };
        _regexHandlers: {
            pattern: RegExp;
            callback: Callback<Detail<Events, any>>;
            once?: boolean;
        }[];
        on<K extends keyof Events>(eventType: RegExp, callback: Callback<Detail<Events, K>>, options?: HandlerOptions): RemoveHandler;
        on<K extends keyof Events>(eventType: K, callback: Callback<Events[K]>, options?: HandlerOptions): RemoveHandler;
        off<K extends keyof Events>(handle: K | RemoveHandler | RemoveHandler[] | RegExp, callback?: Callback<Events[K]>): void;
        offAny(): void;
        emit<K extends keyof Events>(eventType: K, detail: Events[K]): void;
    };
} & T;
export declare function EventEmitter<Events = {}>(): {
    new (...args: any[]): {
        _handlers: { [T in keyof Events]?: {
            callback: Callback<Events[T]>;
            once?: boolean;
        }[] | undefined; };
        _regexHandlers: {
            pattern: RegExp;
            callback: Callback<Detail<Events, any>>;
            once?: boolean;
        }[];
        on<K extends keyof Events>(eventType: RegExp, callback: Callback<Detail<Events, K>>, options?: HandlerOptions): RemoveHandler;
        on<K extends keyof Events>(eventType: K, callback: Callback<Events[K]>, options?: HandlerOptions): RemoveHandler;
        off<K extends keyof Events>(handle: RegExp | RemoveHandler | RemoveHandler[] | K, callback?: Callback<Events[K]> | undefined): void;
        offAny(): void;
        emit<K extends keyof Events>(eventType: K, detail: Events[K]): void;
    };
};
export {};