Terraria.Plugins.CoderCow.Protector.ServerMetadataHandler.UpdateBankChestItem C# (CSharp) Method

        private void UpdateBankChestItem(BankChestDataKey key, int slotIndex, ItemData newItem)
        {
            BankChestMetadata bankChest = this.GetBankChestMetadata(key);
              if (bankChest == null)
            throw new ArgumentException("No bank chest with the given key found.", "key");

              bankChest.Items[slotIndex] = newItem;
              this.AddOrUpdateBankChest(key, bankChest);
        }