Function containsKey

flutter/mmkv_linux/linux/flutter-bridge.cpp:465–472

}

MMKV_EXPORT bool containsKey(void *handle, char *oKey) {
    MMKV *kv = static_cast<MMKV *>(handle);
    if (kv && oKey) {
        string key(oKey);
        return kv->containsKey(key);
    }
    return false;
}

MMKV_EXPORT uint64_t count(void *handle, bool filterExpire) {
    MMKV *kv = static_cast<MMKV *>(handle);