y1chi commented on a change in pull request #12709:
URL: https://github.com/apache/beam/pull/12709#discussion_r483289536



##########
File path: 
sdks/python/apache_beam/testing/benchmarks/nexmark/nexmark_launcher.py
##########
@@ -67,18 +67,20 @@
 import logging
 import sys
 import uuid
-
-from google.cloud import pubsub
+from time import sleep

Review comment:
       since you wouldn't have to import each function you want to use from 
time module. It's not a big deal but I believe calling time.sleep() and 
time.time() will concise enough.




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