@@ -102,7 +102,7 @@ def _request(self, num_tasks, visibility_timeout):
         'All'
       ],
       VisibilityTimeout=visibility_timeout,
-      WaitTimeSeconds=0,
+      WaitTimeSeconds=20,
     )
 
     if 'Messages' not in resp:
Original file line number	Diff line number	Diff line change
`@@ -102,7 +102,7 @@ def _request(self, num_tasks, visibility_timeout):`
`102`	`102`	`'All'`
`103`	`103`	`],`
`104`	`104`	`VisibilityTimeout=visibility_timeout,`
`105`		`- WaitTimeSeconds=0,`
	`105`	`+ WaitTimeSeconds=20,`
`106`	`106`	`)`
`107`	`107`
`108`	`108`	`if 'Messages' not in resp:`