code: def create_and_check_for_causal_lm(
      self,
      config,
      input_ids,
      input_mask,
      token_labels,
      *args,
  ):
      model = BertGenerationDecoder(config)
      model.to(torch_device)
      model.eval()
      result = model(
          input_ids, attention_mask=input_mask, labels=token_labels
      )
      self.parent.assertEqual(
          result.logits.shape,
          (self.batch_size, self.seq_length, self.vocab_size),
      )
  
imports: import unittest
  from transformers import BertGenerationConfig, is_torch_available
  from transformers.testing_utils import require_torch, 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 8 for calling the BertGenerationEncoderTester obj's underlying member method code with example usage: obj.create_and_check_for_causal_lm(config, input_ids, input_mask, token_labels) without return types