@Override
    public Serializer createInner(String name) {
        Cursor childRoot = root.setObject(name);
        return new ConfigInstanceSerializer(slime, childRoot);
    }
Implements a config instance serializer, serializing a config instance to a slime object.

@author Ulf Lilleengen
config/src/main/java/com/yahoo/config/subscription/ConfigInstanceSerializer.java