code: def get_config(self):
      return VanConfig(
          num_channels=self.num_channels,
          hidden_sizes=self.hidden_sizes,
          depths=self.depths,
          num_labels=self.num_labels,
          is_decoder=False,
      )
  
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 3 for calling the VanModelTester obj's underlying member method code with example usage: obj.get_config() and returns: VanConfig