code: def get_default_storage() -> Optional[S3Storage]:
      return _default_storage
  
file_path: dstack/src/dstack/_internal/server/services/storage.py
imports: from typing import Optional
  from dstack._internal.server import settings
label_desc: Use image node_id 3 for calling a global function with example usage: get_default_storage() and returns: _default_storage