public bool Validate (TradeOffer offer)
{
    Log.Warn("getting trade offer items");
    Log.Warn("getting MY offer items");
    if (offer.Items.GetMyItems() != null)
    {
        Bot.GetInventory();
        foreach (var a in offer.Items.GetMyItems())
        {
            Inventory.Item item = null;
            try
            {
                for (int i = 0; i < 5; i++)
                {
                    item = Bot.MyInventory.GetItem((ulong)a.AssetId);
                    if (item != null) break;
                }
                Log.Info("Defindex:{5}, AppID:{0}, ContextID:{1}, Amount:{2}, AssetID:{3}, CurrencyID:{4}", a.AppId, a.ContextId, a.Amount, a.AssetId, a.CurrencyId, item.Defindex);
            }
            catch (System.Net.WebException e)
            {
                Log.Warn("Failed to get inventory items.");
                //return false;
            }
        }
    }

    Log.Warn("getting THEIR offer items");
    if (offer.Items.GetTheirItems() != null)
    {
        GetOtherInventory();
        foreach (var a in offer.Items.GetTheirItems())
        {
            Inventory.Item item = null;
            try
            {
                for (int i = 0; i < 5; i++)
                {
                    item = OtherInventory.GetItem((ulong)a.AssetId);
                    if (item != null) break;
                }
                Log.Info("Defindex:{5}, AppID:{0}, ContextID:{1}, Amount:{2}, AssetID:{3}, CurrencyID:{4}", a.AppId, a.ContextId, a.Amount, a.AssetId, a.CurrencyId, item.Defindex);
            }
            catch (System.Net.WebException e)
            {
                Log.Warn("Failed to get inventory items.");
                //return false;
            }
        }
    }

    return false;
}