type Fn = (event: Event, ...args: Array) => void; export declare const once: (fn: any) => (event: Event) => void; export declare const preventDefault: (fn: any) => (event: Event) => void; export declare const stopPropagation: (fn: any) => (event: Event) => void; export declare const self: (fn: Fn) => (...args: any[]) => void; export {};