Apply Timestamp type alias

rhettinger · rhettinger · commit 251289c2f4db · 2019-10-18T12:09:08.000-07:00
diff --git a/pubsub/pubsub.py b/pubsub/pubsub.py
@@ -22,7 +22,7 @@
 HashTag = str
 
 class Post(NamedTuple):
-    timestamp: float
+    timestamp: Timestamp
     user: User
     text: str
 
