docs: add begin_pending_transactions() to the background thread example for TransactionPingingPool (googleapis#63)

larkee · web-flow · commit 1d4976634cb8 · 2020-04-21T16:10:37.000+10:00
Co-authored-by: larkee &lt;larkee@users.noreply.github.com&gt;
diff --git a/docs/advanced-session-pool-topics.rst b/docs/advanced-session-pool-topics.rst
@@ -103,6 +103,7 @@ started before it is used:
       while True:
          # (Optional) Perform other background tasks here
          pool.ping()
+         pool.begin_pending_transactions()
 
 
    background = threading.Thread(target=background_loop, name='ping-pool')
