code: def get_file(fs, filename):
      '''Serve files for storages with direct file access'''
      storage = by_name(fs)
      if storage is None:
          abort(404)
      return storage.serve(filenamef get_file(fs, filename):
      '''Serve files for storages with direct file access'''
      storage = by_name(fs)
      if storage is None:
          abort(404)
      return storage.serve(filename)
docs: Serve files for storages with direct file access