clean up

src/phoenix/db/models.py

@@ -26,8 +26,10 @@
 class UtcTimeStamp(TypeDecorator[datetime]):
     """TODO(persistence): Figure out how to reliably store and retrieve
     timezone-aware datetime objects from the (sqlite) database. This is a
-    workaround to prevent comparing timezone-naive datetime with timezone-aware
-    datetime, because objects in our programs are always timezone-aware.
+    workaround to guarantee that the timestamps we fetch from the database is
+    always timezone-aware. This is to prevent comparison of timezone-naive
+    datetime with timezone-aware datetime, because objects in the rest of our
+    programs are always timezone-aware.
     """
 
     cache_ok = True