private Set<String> parseJsonToPackages(String content) {
        try {
            Set<String> res = new Gson().fromJson(content, new TypeToken<Set<String>>() {
            }.getType());
            if (!CollectionUtils.isNullOrEmpty(res)) {
                return res;
            }
        } catch (Throwable throwable) {
            XLog.e("parseJsonToPackages", throwable);
        }
        return null;
    }
Null means we load all pkgs
android/app/src/main/java/now/fortuitous/thanos/power/SmartFreezeAppsViewModel.java