code: def formatted_datetime(self, fmt: str = '', **kwargs) -> str:
          
          dt_obj = self.datetime(**kwargs)
  
          if not fmt:
              date_fmt = self._data['formats'].get('date')
              time_fmt = self._data['formats'].get('time')
              fmt = '{} {}'.format(date_fmt, time_fmt)
  
          return dt_obj.strftime(fmt)
docs: Generate datetime string in human readable format.
  
          :param fmt: Custom format (default is format for current locale)
          :param kwargs: Keyword arguments for :meth:`~Datetime.datetime()`
          :return: Formatted datetime string.