Object value = readAny(reader)
            values.add(value)
        }
        reader.endArray()
        return values
    }

    static Map<String, String> normalizeForTests(Map<String, ?> attributes) {
        attributes?.collectEntries { k, v -> [k, v?.toString()] }
    }

    static class Variant {
        final String name
        private final Map<String, Object> values