Upserting several records at once

Upserting several records at once

I am pushing data from Creator to CRM so it'd be nice to not waste API calls and just upsert several records at once as it seems to be possible according to https://www.zoho.com/crm/developer/docs/api/v7/upsert-records.html

It says we can do up to 100 at once but the example in deluge only takes a Map and refused when I tried to pass it a List instead. Is this possible to do with the deluge integration task or do we need to make an API call with invokeurl