text: import pytest
  
  from lucid.modelzoo.vision_models import InceptionV1
  
  
  @pytest.fixture
  def inceptionv1():
      model = InceptionV1()
      model.load_graphdef()
      return model
  
  
  # Add support for a slow tests marker:
  
  
  def pytest_addoption(parser):
      parser.addoption(
          "--run-slow", action="store_true", default=False, help="run slow tests"
      )
  
  
  def pytest_collection_modifyitems(config, items):
      if config.getoption("--run-slow"):
          return
      else:
          skip_slow = pytest.mark.skip(reason="need --runslow option to run")
          for item in items:
              if "slow" in item.keywords:
                  item.add_marker(skip_slow)
  