code: def split_storage(path, default='osfstorage'):
      
      path = norm_remote_path(path)
  
      for provider in KNOWN_PROVIDERS:
          if path.startswith(provider + '/'):
              if six.PY3:
                  return path.split('/', maxsplit=1)
              else:
                  return path.split('/', 1)
  
      return (default, path)
docs: Extract storage name from file path.
  
      If a path begins with a known storage provider the name is removed
      from the path. Otherwise the `default` storage provider is returned
      and the path is not modified.