code: def get_time_string(contest, contest_type):
    
  
    if contest_type == challenge().ACTIVE:
      time_diff = time_difference(contest["end"])
    elif contest_type == challenge().UPCOMING:
      time_diff = time_difference(contest["start"])
    elif contest_type in [challenge().HIRING, challenge().SHORT, challenge().ALL]:
      try:
        time_diff = time_difference(contest["start"])
      except:
        time_diff = time_difference(contest["end"])
    time_diff_string = ""
  
    if time_diff.days > 0: 
      time_diff_string = "{0} days {1} hours".format(time_diff.days, time_diff.hours)
    elif time_diff.hours > 0:
      time_diff_string = "{0} hours {1} minutes".format(time_diff.hours, time_diff.minutes)
    else:
      time_diff_string = "{0} minutes".format(time_diff.minutes)
    return time_diff_string
docs: Return a string with time for the contest to begin/end