anchor.diff:      gs_protocol:supported_versions().
   
   
  --spec perform_io_test(file_meta:path(), od_user:id(), tokens:serialized()) -> ok | error.
  -perform_io_test(Path, UserId, AccessToken) ->
  +-spec perform_io_test(file_meta:path(), tokens:serialized()) -> ok | error.
  +perform_io_test(Path, AccessToken) ->
  +    UserId = get_user_id_from_token(AccessToken),
       SessionId = create_session(UserId, AccessToken),
       BytesSize = 5000,
       SampleFileContent = str_utils:rand_hex(BytesSize),
  
positive.code: 
  
  %% @private
  -spec create_session(od_user:id(), tokens:serialized()) -> binary().
  create_session(UserId, AccessToken) ->
      Nonce = crypto:strong_rand_bytes(10),
      Identity = ?SUB(user, UserId),
  
negative.code:     storage_describe/1,
      is_storage_imported/1,
  
      get_user_space_by_name/2,
  
      get_spaces/0,
      get_space_details/1,
  