code: def test_find_builder_dir_with_namespace_given():
      namespace = "ns"
      ds = f"{namespace}:ds"
      error_msg = re.escape(
          "\t".join(
              [
                  "\nBuilder cannot be loaded from files if it uses:",
                  f"* namespaces (here, {namespace} is used)",
              ]
          )
      )
      with pytest.raises(
          registered.DatasetNotFoundError, match=error_msg
      ), error_utils.reraise_with_context(
          registered.DatasetNotFoundError
      ):
          _find_builder_dir(ds)
          raise registered.DatasetNotFoundError
  
imports: import contextlib
  import functools
  import os
  import pathlib
  import re
  from typing import Sequence
  from unittest import mock
  import dill
  from etils import epath
  import pytest
  import tensorflow
  from tensorflow_datasets import testing
  from tensorflow_datasets.core import constants
  from tensorflow_datasets.core import dataset_builder
  from tensorflow_datasets.core import dataset_utils
  from tensorflow_datasets.core import load
  from tensorflow_datasets.core import proto
  from tensorflow_datasets.core import read_only_builder
  from tensorflow_datasets.core import registered
  from tensorflow_datasets.core import splits
  from tensorflow_datasets.core import utils
  from tensorflow_datasets.core.features import features_dict
  from tensorflow_datasets.core.proto import dataset_info_pb2
  from tensorflow_datasets.core.utils import error_utils
  from tensorflow_datasets.core.utils import file_utils
  from google.protobuf import json_format
label_desc: Use image node_id 13 for calling a global function with example usage: test_find_builder_dir_with_namespace_given() without return types