code: def test_shared_fs_shortcut_dict() -> None:
      shortcut = {"type": "shared_fs", "base_path": "test_base_path"}
      with pytest.raises(ValueError):
          _ = core._context._get_storage_manager(
              checkpoint_storage=shortcut
          )
  
imports: import os
  from typing import Optional
  from unittest import mock
  import pytest
  from determined import core
  from determined.common import storage
label_desc: Use image node_id 15 for calling a global function with example usage: test_shared_fs_shortcut_dict() without return types