code: def default_feature_extractor(self):
      return AutoFeatureExtractor.from_pretrained(
          VAN_PRETRAINED_MODEL_ARCHIVE_LIST[0]
      )
  
imports: import inspect
  import math
  import unittest
  from transformers import VanConfig
  from transformers.testing_utils import require_scipy, require_torch, require_vision, slow, torch_device
  from transformers.utils import cached_property, is_scipy_available, is_torch_available, is_vision_available
  from ...test_configuration_common import ConfigTester
  from ...test_modeling_common import ModelTesterMixin, _config_zero_init, floats_tensor, ids_tensor
label_desc: Use image node_id 1 for calling the VanModelIntegrationTest obj's underlying member method code with example usage: obj.default_feature_extractor() and returns: AutoFeatureExtractor