code: def test_get_base_storage(
      client: "Client", storage_specifier: str
  ) -> None:
      with get_storage_url(storage_specifier) as url:
          dask_storage = DaskStorage(url)
          storage = dask_storage.get_base_storage()
          expected_type = type(optuna.storages.get_storage(url))
          assert type(storage) is expected_type
  
imports: from contextlib import contextmanager
  import time
  from typing import Iterator
  import numpy
  import pytest
  import optuna
  from optuna._imports import try_import
  from optuna.integration.dask import _OptunaSchedulerExtension
  from optuna.integration.dask import DaskStorage
  from optuna.testing.tempfile_pool import NamedTemporaryFilePool
  from optuna.trial import Trial
label_desc: Use image node_id 9 for calling a global function with example usage: test_get_base_storage(client, storage_specifier) without return types