code: def testMakeBeamDependencyFlags(self, mock_build_ephemeral_package):
      mock_build_ephemeral_package.return_value = "mock_file"
      beam_flags = dependency_utils.make_beam_dependency_flags(
          beam_pipeline_args=[]
      )
      self.assertListEqual(["--extra_package=mock_file"], beam_flags)
      mock_build_ephemeral_package.assert_called_with()
  
file_path: tfx/tfx/utils/dependency_utils_test.py
imports: import os
  import sys
  from unittest import mock
  from absl import logging
  from absl.testing import parameterized
  import tensorflow
  from tfx.dsl.io import fileio
  from tfx.utils import dependency_utils
label_desc: Use image node_id 2 for calling the DependencyUtilsTest obj's underlying member method code with example usage: obj.testMakeBeamDependencyFlags(mock_build_ephemeral_package) without return types