docs: def parse_date(dt, ignoretz=True, as_tz=None):
      """
      :param dt: string datetime to convert into datetime object.
      :return: date object if the string can be parsed into a date. Otherwise,
          return None.
  
      :see: http://labix.org/python-dateutil
  
      Examples:
  
      >>> parse_date('2011-12-30')
      datetime.date(2011, 12, 30)
      >>> parse_date('12/30/2011')
      datetime.date(2011, 12, 30)
      """
      dttm = parse_datetime(dt, ignoretz=ignoretz)
      return None if dttm is None else dttm.date()