diff --git a/extensions/openai/defaults.py b/extensions/openai/defaults.py
index 88a1aaac..7bc5ab2a 100644
--- a/extensions/openai/defaults.py
+++ b/extensions/openai/defaults.py
@@ -50,10 +50,11 @@ default_req_params = {
 def get_default_req_params():
     return copy.deepcopy(default_req_params)
 
-# little helper to get defaults if arg is present but None and should be the same type as default.
-
 
 def default(dic, key, default):
+    '''
+    little helper to get defaults if arg is present but None and should be the same type as default.
+    '''
     val = dic.get(key, default)
     if not isinstance(val, type(default)):
         # maybe it's just something like 1 instead of 1.0