code: def save(self, *args, **kwargs):
          
  
          # Cache basic data
          self.cache_data()
  
          # Ensure slug doesn't change
          if self.id is not None:
              db_company = Company.objects.get(id=self.id)
              if self.slug_name != db_company.slug_name:
                  raise ValueError("Cannot reset slug_name")
  
          if str(self.trade_name).strip() == "":
              self.trade_name = None
  
          # Short description check
          if len(str(self.short_description)) > 370:
              raise AssertionError("Short description must be no more than 370 characters")
  
          if self.sub_industry is not None:
              # Cache GICS
              self.industry = self.sub_industry.industry
              self.industry_group = self.sub_industry.industry.industry_group
              self.sector = self.sub_industry.industry.industry_group.sector
              # Cache GICS names
              self.sub_industry_name = self.sub_industry.name
              self.industry_name = self.industry.name
              self.industry_group_name = self.industry_group.name
              self.sector_name = self.sector.name
  
          # Call save method
          super(Company, self).save(*args, **kwargs)
docs: This method autogenerates the auto_generated_description field