code: def test_model_from_pretrained(self):
      for model_name in BERT_PRETRAINED_MODEL_ARCHIVE_LIST[:1]:
          model = BertModel.from_pretrained(model_name)
          self.assertIsNotNone(model)
  
imports: import os
  import tempfile
  import unittest
  from transformers import BertConfig, is_torch_available
  from transformers.models.auto import get_values
  from transformers.testing_utils import require_torch, require_torch_gpu, slow, torch_device
  from ...generation.test_generation_utils import GenerationTesterMixin
  from ...test_configuration_common import ConfigTester
  from ...test_modeling_common import ModelTesterMixin, floats_tensor, ids_tensor, random_attention_mask
label_desc: Use image node_id 18 for calling the BertModelTest obj's underlying member method code with example usage: obj.test_model_from_pretrained() without return types