Poloniex C# API - 尝试提取 ETH 时出错

我正在使用此处提供的Poloniex C#

API：Poloniex C#。

我正在尝试从我的帐户中提取 ETH，如下所示：

private string ETHWithdrawalAddress;
public async void WithdrawETH(double amount)
{
 var addresses = await client.Wallet.GetDepositAddressesAsync();
 ETHWithdrawalAddress = addresses["ETH"];
 await client.Wallet.PostWithdrawalAsync("ETH", amount,   ETHWithdrawalAddress);
}

但我收到此错误

无法创建类型的实例Jojatekok.PoloniexAPI.WalletTools.IGeneratedDepositAddress.

类型是接口或抽象类，无法实例化。

任何解决此问题的帮助将不胜感激。

PostData<IGeneratedDepositAddress>("withdraw", postData);

PostData<GeneratedDepositAddress>("withdraw", postData);