Doing:

resp = zoho.crm.searchRecords("Potentials","Closing_Date:equals:2018-05-04");

returns this error:

{"code":"INVALID_QUERY","details":{"reason":"invalid value for search","api_name":"Closing_Date","value":"2018\\-05\\-04"},"message":"invalid query formed","status":"error"}

what is the right way to do it?