type DateProps = string | number | Date

type options = Partial<{
  dateFirst: boolean
  hour12: boolean
  timeZone: string
  showTimeZone: 'automatic' | boolean // 'automatic'/true/false
  style: string
  year: boolean
  yearSeparator: string
  truncateSameMonth: boolean
  truncateSameYear: boolean
  anchorDate: Date // very optional - only used to anchor relative dates from a date other than `dayjs()` (current datetime), primarily for tests
}>

declare module '@planningcenter/datetime-fmt' {
  export const datetime: (d: DateProps, opts: options) => string
  export const date: (d: DateProps, opts: options) => string
  export const time: (d: DateProps, opts?: options) => string
}