docs: def analyse(self, demand_item, demand_item_code):
          """ Run the analyis of the model
              Doesn't return anything, but creates a new item ``LcoptModel.result_set`` containing the results
          """
          my_analysis = Bw2Analysis(self)
          self.result_set = my_analysis.run_analyses(demand_item, demand_item_code, **self.analysis_settings)
  
          return True