Added tag decorators for introspection.

ccnode/tags.py

@@ -112,6 +112,21 @@ def tag_inspector(mod, parent=None):
     return tags
 
 
+# decorators for tag inspector
+def ttl(value):
+    def decorator(func):
+        func.ttl = value
+        return func
+    return decorator
+
+
+def refresh(value):
+    def decorator(func):
+        func.refresh = value
+        return func
+    return decorator
+
+
 def get_tags(tags_dict, tags=None, noresolve_tags=None):
     """Helper to get tags.