Update import in test

Signed-off-by: Beat Buesser <[email protected]>

Author: Beat Buesser

tests/defences/test_defensive_distillation.py

@@ -22,7 +22,7 @@
 
 import numpy as np
 
-from art.defences.transformer import DefensiveDistillation
+from art.defences.transformer.evasion import DefensiveDistillation
 
 from tests.utils import master_seed, TestBase
 from tests.utils import get_image_classifier_tf, get_image_classifier_pt, get_image_classifier_kr