public bool ContainsKey(LightningDatabase db, byte[] key) { if (db == null) throw new ArgumentNullException(nameof(db)); byte[] value; return TryGet(db, key, out value); }
public static bool ContainsKey <TKey>(this LightningTransaction txn, LightningDatabase db, TKey key) { var keyBytes = db.ToBytes(key); return(txn.ContainsKey(db, keyBytes)); }