code: def test_get_custom_filesystem(shutdown_only, tmp_path):
      ray.init(
          storage=os.path.join(
              "custom://ray.test.test_storage_custom_fs", str(tmp_path)
          )
      )
      fs, prefix = storage.get_filesystem()
      assert path_eq(prefix, tmp_path), prefix
      assert isinstance(fs, pyarrow.fs.LocalFileSystem), fs
  
imports: import os
  import sys
  import subprocess
  import urllib
  from pathlib import Path
  from packaging.version import parse
  import pyarrow.fs
  import pytest
  import ray
  import ray._private.storage
  from ray._private.test_utils import simulate_storage
  from ray._private.utils import _add_creatable_buckets_param_if_s3_uri, _get_pyarrow_version
  from ray.tests.conftest import *
label_desc: Use image node_id 5 for calling a global function with example usage: test_get_custom_filesystem(shutdown_only, tmp_path) without return types