code: def setup_method(self, method):
      Utils.initialize_model_parallel(1, 1)
      model_parallel_cuda_manual_seed(123)
      transformer_config = TransformerConfig(
          num_layers=2,
          hidden_size=12,
          num_attention_heads=4,
          use_cpu_initialization=True,
          perform_initialization=True,
      )
      self.bert_model = BertModel(
          config=transformer_config,
          num_tokentypes=0,
          transformer_layer_spec=bert_layer_with_transformer_engine_spec,
          vocab_size=100,
          max_sequence_length=4,
      )
  
file_path: megatron-lm/tests/unit_tests/models/test_bert_model.py
imports: import pytest
  import torch
  from megatron.core.transformer.transformer_config import TransformerConfig
  from megatron.core.models.bert.bert_model import BertModel
  from tests.unit_tests.test_utilities import Utils
  from megatron.core.tensor_parallel.random import model_parallel_cuda_manual_seed
  from megatron.core.models.bert.bert_layer_specs import bert_layer_with_transformer_engine_spec
label_desc: Use image node_id 1 for calling the TestBertModel obj's underlying member method code with example usage: obj.setup_method(method) without return types