}
}
else if(value instanceof Collection) {
Collection argColl=(Collection) value;
//Collection.Key[] keys = argColl.keys();
Iterator<Key> it = argColl.keyIterator();
Key k;
while(it.hasNext()) {
k = it.next();
if(!values.containsKey(k)){
values.setEL(k,argColl.get(k,Argument.NULL));