import { Fn, Recordable } from '../types'; export declare const withInstall: (component: T, alias?: string) => T & Plugin; export declare const humpToUnderline: (str: string) => string; export declare const underlineToHump: (str: string) => string; export declare const humpToDash: (str: string) => string; export declare const setCssVar: (prop: string, val: any, dom?: HTMLElement) => void; export declare const findIndex: (ary: Array, fn: Fn) => number; export declare const trim: (str: string) => string; export declare function formatTime(time: Date | number | string, fmt: string): string; export declare function toAnyString(): string; export declare function firstUpperCase(str: string): string;