+# -*- coding: utf-8 -*-
+
+import tensorflow.contrib.slim as slim
+import os
+
+os.environ["CUDA_VISIBLE_DEVICES"] = ""
+
+
+@slim.add_arg_scope
+def fn(a, c=100):
+
+ return a+c
+
+
+with slim.arg_scope([fn], a=2):
+ with slim.arg_scope([fn], a=1):
+
+ print(fn())
+
+