code: def _next_year():
      
      now = datetime.now().__str__()
      date = now.split(' ', 1)[0]
      year, month, day = date.split('-', 2)
      next_year = str(int(year)+1)
      return '-'.join((next_year, month, day))
docs: Get the date of today plus one year.
  
      :rtype: str
      :returns: The date of this day next year, in the format '%Y-%m-%d'.