docs: def create(self, params, args, data):
          # type: (str, dict, dict) -> AppModel
          """
          POST /resource/model_cls/
          data
  
          Create new resource
          """
          ctx = self._create_context(params, args, data)
          model = self._create_one(ctx)
          self._save_one(model, ctx)
          return self._return_saved_one(model, ctx)