getFormattedRemainingTime: (state): string => {
   let duration: Moment.Duration = Moment.duration(
     state.remainingLessonTime,
     'seconds'
   )
   let seconds: string | number = duration.seconds()
   let minutes: string | number = duration.minutes()
   if (seconds < 10) seconds = '0' + seconds
   if (minutes < 10) minutes = '0' + minutes
   return minutes + ':' + seconds
 },

export const shouldHumanize = (time: moment.Moment, cutoff?: TimeInterval): boolean => {
  // If cutoff is not provided, use the default ISO output.
  if (!cutoff) { return false; }
  const duration = durationMap[cutoff]();
  /**
   * difference between now and the time provided 
   * without Math.abs(), diff will return a negative number if passed a future date 
   */
  const diff = Math.abs(+moment.duration(moment().diff(time)));
  /**
   * Humanize the date if th difference between the current date and provided date
   * is lower than the cutoff
   */
  return diff <= +duration;
}