code: def test_export_format_with_customized_template_and_output_name(self):
      toolkit = core.ModelCardToolkit(output_dir=self.mct_dir)
      mc = toolkit.scaffold_assets()
      mc.model_details.name = "My Model"
      toolkit.update_model_card(mc)
  
      template_path = os.path.join(
          self.mct_dir, "template/html/default_template.html.jinja"
      )
      output_file = "my_model_card.html"
      result = toolkit.export_format(
          template_path=template_path, output_file=output_file
      )
  
      model_card_path = os.path.join(
          self.mct_dir, "model_cards", output_file
      )
      self.assertTrue(os.path.exists(model_card_path))
      content = io_utils.read_file(model_card_path)
      self.assertEqual(content, result)
      self.assertTrue(content.startswith("<!DOCTYPE html>"))
      self.assertIn("My Model", content)
  
file_path: model-card-toolkit/model_card_toolkit/core_test.py
imports: import os
  from absl import flags
  from absl.testing import absltest
  from model_card_toolkit import core
  from model_card_toolkit.proto import model_card_pb2
  from model_card_toolkit.utils import io_utils
label_desc: Use image node_id 7 for calling the CoreTest obj's underlying member method code with example usage: obj.test_export_format_with_customized_template_and_output_name() without return types