Added TODO to add tests

clients/python/README.md

@@ -31,7 +31,7 @@ mc.authorize(access_token)
 
 Return a stream of event for time range.
 
-**From timestamp to None**
+**From timestamp to None, from bottom to top**
 
 When `end_time` is not set.
 

clients/python/moonstream/client.py

@@ -405,6 +405,7 @@ class Moonstream:
 
         Returns: A dictionary stream representing the results of your query.
         """
+        # TODO(kompotkot): Add tests
         shift_two_hours = 2 * 60 * 60  # 2 hours
         shift_half_hour = 1 * 30 * 30  # 30 min