What does the xas action validate do?

Hi community, when you inspect the network, you can monitor different actions on the /xas endpoint and inspect the payload that is send to the Mendix server. I've seen: retrieve: using a query-id to retrieve over association, defined in your page.xml retrieve_by_ids: using object ids to retrieve the objects retrieve_by_xpath: using an xpath to retrieve the objects keepalive: keep session active executeaction: call a microflow executemicroflow: seems to be a seperate version of executeaction? validate: ? Can someone shed some light on this last action?
1 answers

Since a while (Mx 9.?) the retrieves are not  passing an XPath statement but a GUID which is referring to an XPATH known by the server. This is probably validating this GUID.