Update tools.py

utils/tools.py

@@ -3,6 +3,7 @@ import mindspore.numpy as mnp
 import mindspore
 from mindspore import Tensor, Parameter
 
+
 def adjust_learning_rate(optimizer, epoch, args):
     if args.lradj == 'type1':
         lr_adjust = {epoch: args.learning_rate * (0.5 ** ((epoch-1) // 1))}