Splunk Add-on for Google Cloud Platform ACK pub/su…

Hi All,

I am using Splunk Add-on for GCP to pull logs from log sink via pub/sub. I configured a pub/sub input inside the add on and it is successfully pulling the logs from pub/sub. 

But I want to confirm if  “GCP add on after receiving the messages from pub/sub sends back a ACK (acknowledgement) message to pub/sub so that same message is not sent twice or duplicated“? There is nothing mentioned about ACK messages in GCP addon documentation so asking here. Please help me out.