import { PluginFunc, ConfigType } from 'dayjs' declare const plugin: PluginFunc export = plugin declare module 'dayjs' { interface Dayjs { utc(keepLocalTime?: boolean): Dayjs local(): Dayjs isUTC(): boolean utcOffset(offset: number | string, keepLocalTime?: boolean): Dayjs } export function utc(config?: ConfigType, format?: string, strict?: boolean): Dayjs }