How to add the duplicateCheck parameter when inserting data to CRM from Creator

How to add the duplicateCheck parameter when inserting data to CRM from Creator

This example: https://help.creator.zoho.com/Creating-a-record-in-CRM.html
claims that the following: zoho.crm.create("Leads", leadinfo);
is a wrapper for this:   https://zohocrmapi.wiki.zoho.com/insertRecords-Method.html

The insertRecords method has a request parameter: duplicateCheck=2
which allows me to update a record if it finds a duplicate.

How can I use that duplicateCheck parameter when using the "wrapper" zoho.crm.create provided in Creator?

Thanks,

David