code: def test_build_model(self):
      for model_config in self.model_configs:
          model = build_model(model_config)
          self.assertTrue(isinstance(model, ClassyModel))
  
file_path: ClassyVision/test/models_resnext3d_test.py
imports: import copy
  import unittest
  import torch
  from classy_vision.models import build_model, ClassyModel
  from test.generic.utils import compare_model_state
label_desc: Use image node_id 2 for calling the TestResNeXt3D obj's underlying member method code with example usage: obj.test_build_model() without return types