code: def set_tax_benefit_systems(self, tax_benefit_system = None, baseline_tax_benefit_system = None):
          
          assert tax_benefit_system is not None
          self.tax_benefit_system = tax_benefit_system
          if self.cache_blacklist is not None:
              self.tax_benefit_system.cache_blacklist = self.cache_blacklist
          if baseline_tax_benefit_system is not None:
              self.baseline_tax_benefit_system = baseline_tax_benefit_system
              if self.cache_blacklist is not None:
                  self.baseline_tax_benefit_system.cache_blacklist = self.cache_blacklist
docs: Set the tax and benefit system and eventually the baseline tax and benefit system