code: def from_analysis_period(cls, analysis_period, tau_b, tau_d,
                               daylight_savings_indicator='No'):
          Initialize a RevisedClearSkyCondition from an analysis_period"""
          _check_analysis_period(analysis_period)
          return cls(analysis_period.st_month, analysis_period.st_day, tau_b, tau_d,
                     daylight_savings_indicator)
docs: Initialize a RevisedClearSkyCondition from an analysis_period