fix import order in multigpu_advtrain/test_run_multigpu.py
@@ -3,10 +3,11 @@ from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals
+from collections import namedtuple
import unittest
+
import numpy as np
import tensorflow as tf
-from collections import namedtuple
from cleverhans.utils import AccuracyReport
from cleverhans.devtools.checks import CleverHansTest
