export declare class FormEvent {
    callbacks: Record<string, Record<string, Array<Function>>>;
    constructor();
    on(path: string, type: string, cb: Function): this;
    off(path: string, type: string, cb: Function): this;
    once(path: string, type: string, cb: Function): this;
    emit(path: string, type: string, ...arg: any[]): void;
}
declare const _default: FormEvent;
export default _default;