code: def get_hours_description(self):
          
          expression = self._expression_parts[2]
          return self.get_segment_description(
              expression,
              _("every hour"),
              lambda s: self.format_time(s, "0"),
              lambda s: _("every {0} hours").format(s),
              lambda s: _("between {0} and {1}"),
              lambda s: _("at {0}")
          )
docs: Generates a description for only the HOUR portion of the expression
  
          Returns:
              The HOUR description