update: optimizer utils

Author: kozistr

pytorch_optimizer/__init__.py

@@ -16,5 +16,6 @@
 from pytorch_optimizer.ranger21 import Ranger21
 from pytorch_optimizer.sam import SAM
 from pytorch_optimizer.sgdp import SGDP
+from pytorch_optimizer.utils import get_optimizer_parameters, normalize_gradient, unit_norm
 
-__VERSION__ = '0.1.0'
+__VERSION__ = '0.1.1'