// update function, making it ready for use.
func NewFromFunc[T any](ttl time.Duration, opts Opts, update func(ctx context.Context) (T, error)) *Cache[T] {
	return &Cache[T]{
		ttl:      ttl,
		updateFn: update,
		opts:     opts,
	}
}

// InitOnce initializes the cache with a TTL and an update function. It is
// guaranteed to be called only once.
func (t *Cache[T]) InitOnce(ttl time.Duration, opts Opts, update func(ctx context.Context) (T, error)) {

    public final String getAltPath() {
        return this.altPath;
    }

    /**
     * Gets the time-to-live value for this referral in seconds.
     *
     * @return the ttl
     */
    public final int getTtl() {
        return this.ttl;
    }

    /**
     * Gets the referral path.
     *
     * @return the rpath
     */
    public final String getRpath() {
        return this.rpath;
    }

        @Override
        public String toString() {
            return ("Referral[" + "version=" + version + ",size=" + size + ",serverType=" + serverType + ",flags=" + flags + ",proximity="
                    + proximity + ",ttl=" + ttl + ",pathOffset=" + pathOffset + ",altPathOffset=" + altPathOffset + ",nodeOffset="
                    + nodeOffset + ",path=" + path + ",altPath=" + altPath + ",node=" + node + "]");
        }
    }

    int pathConsumed;

	}
}

func saveKeyEtcdWithTTL(ctx context.Context, client *etcd.Client, key string, data []byte, ttl int64) error {
	timeoutCtx, cancel := context.WithTimeout(ctx, defaultContextTimeout)
	defer cancel()
	lease, err := client.Grant(timeoutCtx, ttl)
	if err != nil {
		return etcdErrToErr(err, client.Endpoints())
	}
	_, err = client.Put(timeoutCtx, key, string(data), etcd.WithLease(lease.ID))

//     eviction callback, and TTL.
func New(size int, ttl time.Duration) Store {
	if size <= 0 {
		size = defaultMaxSize
	}

	if ttl <= 0 {
		ttl = defaultTTL
	}

	onEvicted := func(k string, v *Stmt) {
		if v != nil {
			go v.Close()
		}
	}
	return &lruStore{lru: lru.NewLRU[string, *Stmt](size, onEvicted, ttl)}
}

type lruStore struct {

            configMockedStatic.close();
    }

    @Test
    void testCacheEntry() {
        // Test with a specific TTL
        long ttl = 600; // 10 minutes
        Dfs.CacheEntry cacheEntry = new Dfs.CacheEntry(ttl);
        long expectedExpiration = System.currentTimeMillis() + ttl * 1000L;
        assertTrue(cacheEntry.expiration >= expectedExpiration - 100 && cacheEntry.expiration <= expectedExpiration + 100);

    for (i in 0 until answerCount) {
      skipName(buf) // name

      val type = buf.readShort().toInt() and 0xffff
      buf.readShort() // class
      @Suppress("UNUSED_VARIABLE")
      val ttl = buf.readInt().toLong() and 0xffffffffL // ttl
      val length = buf.readShort().toInt() and 0xffff

      if (type == TYPE_A || type == TYPE_AAAA) {
        val bytes = ByteArray(length)
        buf.read(bytes)

// - ttl: The time-to-live duration for each prepared statement in the store. Statements older than this duration will be automatically removed.
//
// Returns:
// - A pointer to a PreparedStmtDB instance, which manages prepared statements using the provided connection pool and configuration.
func NewPreparedStmtDB(connPool ConnPool, maxSize int, ttl time.Duration) *PreparedStmtDB {
	return &PreparedStmtDB{

    }

    @Override
    public String toString() {
        return "DfsReferral[pathConsumed=" + pathConsumed + ",server=" + server + ",share=" + share + ",link=" + link + ",path=" + path
                + ",ttl=" + ttl + ",expiration=" + expiration + ",resolveHashes=" + resolveHashes + "]";
    }

	Weight   int         `json:"weight,omitempty"`
	Text     string      `json:"text,omitempty"`
	Mail     bool        `json:"mail,omitempty"` // Be an MX record. Priority becomes Preference.
	TTL      uint32      `json:"ttl,omitempty"`

	// Holds info about when the entry was created first.
	CreationDate time.Time `json:"creationDate"`

	// When a SRV record with a "Host: IP-address" is added, we synthesize