final fix bug in load dataset test code
@@ -3,8 +3,9 @@ import csv
from typing import Iterable
from ...core.const import Const
-from ...core import DataSet, Instance, Vocabulary
-from ...core.vocabulary import VocabularyOption
+from ...core.dataset import DataSet
+from ...core.instance import Instance
+from ...core.vocabulary import VocabularyOption, Vocabulary
from ..base_loader import DataInfo, DataSetLoader
from typing import Union, Dict
from ..utils import check_dataloader_paths, get_tokenizer
