Get invoices that have a status of "pending_approval" or "draft" Deluge or API

Get invoices that have a status of "pending_approval" or "draft" Deluge or API

I'm trying to use Deluge "getRecords" with Zoho Books to return a list of invoices that have a status of "Draft" or "Pending Approval". Alternatively, I can use Zoho Books API if better.

How can I use multiple "or" search paramters on this request? 

For example (I know this is not formatted correctly):
  1.  searchParam = {"filter_by":"draft,pending_approval" }; 
 response = zoho.books.getRecords("Invoices", "53XXXXXX", searchParam, "books_connection");