text: export default (o, c, dayjs) => { // locale needed later
    const proto = c.prototype
    const localeData = function () {
      return {
        months: instance =>
          (instance ? instance.format('MMMM') : this.$locale().months),
        monthsShort: instance =>
          (instance ? instance.format('MMM') : this.$locale().monthsShort),
        firstDayOfWeek: () => this.$locale().weekStart || 0,
        weekdaysMin: instance =>
          (instance ? instance.format('dd') : this.$locale().weekdaysMin),
        weekdaysShort: instance =>
          (instance ? instance.format('ddd') : this.$locale().weekdaysShort)
      }
    }
    proto.localeData = function () {
      return localeData.bind(this)()
    }
  
    dayjs.localeData = () => {
      const localeObject = dayjs.Ls[dayjs.locale()]
      return {
        firstDayOfWeek: () => localeObject.weekStart || 0
      }
    }
  }
  