code: def concurrent_pipeline_runs_enabled_env():
      class _TestEnv(
          env._DefaultEnv
      ):  # pylint: disable=protected-access
          def concurrent_pipeline_runs_enabled(self) -> bool:
              return True
  
      return _TestEnv()
  
imports: import os
  from typing import Dict, Optional
  import uuid
  from absl.testing.absltest import mock
  from tfx import types
  from tfx.orchestration import data_types_utils
  from tfx.orchestration import metadata
  from tfx.orchestration import node_proto_view
  from tfx.orchestration.experimental.core import env
  from tfx.orchestration.experimental.core import mlmd_state
  from tfx.orchestration.experimental.core import pipeline_state
  from tfx.orchestration.experimental.core import service_jobs
  from tfx.orchestration.experimental.core import task
  from tfx.orchestration import mlmd_connection_manager
  from tfx.orchestration.portable import cache_utils
  from tfx.orchestration.portable import execution_publish_utils
  from tfx.orchestration.portable import outputs_utils
  from tfx.orchestration.portable.mlmd import context_lib
  from tfx.orchestration.portable.mlmd import execution_lib
  from tfx.proto.orchestration import pipeline_pb2
  from tfx.types import standard_artifacts
  from tfx.utils import status
  from tfx.utils import test_case_utils
  from tfx.utils import typing_utils
  from ml_metadata.proto import metadata_store_pb2
label_desc: Use image node_id 20 for calling a global function with example usage: concurrent_pipeline_runs_enabled_env() and returns: _TestEnv, True