|                    |  | import { PluginFunc, ConfigType } from 'dayjs'
declare const plugin: PluginFuncexport = plugin
declare module 'dayjs' {  interface Dayjs {    tz(timezone?: string, keepLocalTime?: boolean): Dayjs    offsetName(type?: 'short' | 'long'): string | undefined  }
  interface DayjsTimezone {    (date?: ConfigType, timezone?: string): Dayjs    (date: ConfigType, format: string, timezone?: string): Dayjs    guess(): string    setDefault(timezone?: string): void  }
  const tz: DayjsTimezone}
 |