Try this

answer = ifScript();

function ifScript() {

var catvar = new GlideRecord("u_catalog_item_variables_list");
//catvar.get(obj.mrvs_al);
catvar.addQuery('u_name', 'Snowflake - HCDA PII Prod');
catvar.addQuery('u_needs_pii_approval', true);
catvar.query();
		gs.log('VVVVVV info reference- ' + current.variables.sar_system);
		gs.log('VVVVVV info NPA- ' + catvar.u_needs_pii_approval);
if (catvar.hasNext()) {
return 'yes';
}
else{
return 'no';
}