Is it possible to use zoho.desk.getRecords to look for a specific agent using their email? 

sample from https://www.zoho.com/deluge/help/desk/get-records.html does not provide a proper example on how to use the query_value parameter. Can anyone provide a proper example on this?

<variable> = zoho.desk.getRecords(<orgId>, <module_name>, <fromIndex>, <limit>, <query_value>, <connection>);