public Task UpdateItemOffsetForUser(ItemDetails item, UserInfo user)
{
//ItemOffsetChangeReceived?.Invoke(this, new ItemOffsetChangeReceivedEventArgs(tradeMessages));
throw new NotImplementedException();
}
/// <summary>
/// Send a message to the hub to add a new item
/// </summary>
/// <param name="item">item to add</param>
public async Task AddNewItem(ItemDetails item)
{
await SendAsyncObject("AddNewItem", item);
}