fix format

Author: masanorihirano

qfeval_data/__init__.py

@@ -1,5 +1,5 @@
-from .version import __version__
 from .data import Data
 from .flattener import Flattener
+from .version import __version__
 
 __all__ = ["__version__"]

tests/test_data.py

@@ -1,8 +1,8 @@
 import io
 import pickle
 import random
-from math import nan
 import typing
+from math import nan
 
 import numpy as np
 import pandas as pd