C#，如何从异步/等待任务返回字符串作为结果

c#

我得到了调用 3rd 方 WCF 服务的异步私有方法，作为回报，它获取字符串值。我在 WCF 调用中添加了 await 但出现错误

错误

'string' does not contain a definition for GetAwaiter and no accessible extension method accepting first argument of type string

代码

 private async Task<string> InitializeCall()
    {
        string response = string.Empty;

        response = await eziClient.GetTransactionsAsync(username, "", BatchNumber.ToString(), "").GetAwaiter().GetResult();
        

        return response;
    }

不知道我在这里错过了什么？

回答

 private async Task<string> InitializeCall()
    {
        string response = string.Empty;

        response = await eziClient.GetTransactionsAsync(username, "", BatchNumber.ToString(), "");
        

        return response;
    }