String key = it.keySet()[0]
        Object value = it[key]
        toExclude(key, value)
    }

    private void collectOperands(Object value, List<String> collector) {
        if (value instanceof List) {
            value.each {
                collectOperands(it, collector)
            }
        } else {
            collector << toExclude(value)
        }
    }