code: def _predict(self, item):
      return item
  
imports: import asyncio
  import os
  import platform
  import fastapi
  import pydantic
  import pytest
  from starlette.testclient import TestClient
  from modelkit import testing
  from modelkit.api import ModelkitAutoAPIRouter, create_modelkit_app
  from modelkit.core.errors import ModelsNotFound
  from modelkit.core.model import Asset, AsyncModel, Model
  from tests import TEST_DIR
label_desc: Use image node_id 1 for calling the NotValidatedModel obj's underlying member method code with example usage: obj._predict(item) and returns: item