code: def testCreatePipelineWithFlags(self):
      flags_dict = {
          labels.ENGINE_FLAG: self.engine,
          labels.PIPELINE_DSL_PATH: self.pipeline_path,
      }
      handler = local_handler.LocalHandler(flags_dict)
      # Pipeline creation should not be affected by additional flags.
      with mock.patch.object(
          sys, "argv", new=(sys.argv + ["--unexpected_flag"])
      ):
          handler.create_pipeline()
      self.assertTrue(
          fileio.exists(
              handler._get_pipeline_args_path(self.pipeline_name)
          )
      )
  
imports: import json
  import os
  import subprocess
  import sys
  from unittest import mock
  import tensorflow
  from tfx.dsl.components.base import base_driver
  from tfx.dsl.io import fileio
  from tfx.tools.cli import labels
  from tfx.tools.cli.handler import local_handler
  from tfx.utils import test_case_utils
label_desc: Use image node_id 4 for calling the LocalHandlerTest obj's underlying member method code with example usage: obj.testCreatePipelineWithFlags() without return types