diff --git a/github/GithubObject.py b/github/GithubObject.py
index 6bc5a7bb..bc32b257 100644
--- a/github/GithubObject.py
+++ b/github/GithubObject.py
@@ -133,6 +133,7 @@ class GithubObject(object):
         '''
         return self._headers.get(Consts.RES_LAST_MODIFED)
 
+    # #193: Should be only in CompletableGithubObject, NonCompletableGithubObjects don't have urls
     def update(self):
         '''
         Check and update the object with conditional request
diff --git a/github/Requester.py b/github/Requester.py
index 792861d9..feed86b2 100644
--- a/github/Requester.py
+++ b/github/Requester.py
@@ -176,6 +176,7 @@ class Requester:
 
     def __check(self, status, responseHeaders, output):
         output = self.__structuredFromJson(output)
+        # #193: Shouldn't next line be in __requestEncode? (__check is not called on all requests)
         # Log frame
         self.DEBUG_ON_RESPONSE(status, responseHeaders, output)