Lucee / ACF structFilter issue

gistfile1.txt

<cfscript>
foo = 2;
bar = 3;
function test( required any foo , required any bar ) {
    return arguments;
};
args = test( foo , bar );
/* crude fix for Lucee 
args = deserializeJSON(serializeJSon(test( foo , bar )));
*/
writedump(args);
try {
    filtered = structFilter( args , function(key,value) { if (value eq 3) {return true;} else {return false;} } ); 
    writedump(filtered);
} catch( any e ) { writeDump(e) };
</cfscript>