code: def _set_seo_models(self, value):
          
          seo_models = []
          for model_name in value:
              if "." in model_name:
                  app_label, model_name = model_name.split(".", 1)
                  model = models.get_model(app_label, model_name)
                  if model:
                      seo_models.append(model)
              else:
                  app = models.get_app(model_name)
                  if app:
                      seo_models.extend(models.get_models(app))
      
          self.seo_models = seo_models
docs: Gets the actual models to be used.