Windows システム資格情報を使用して Go HTTP NTLM リクエストを認証するにはどうすればよいですか?

<code class="go">package main

import (
    "fmt"

    ole "github.com/go-ole/go-ole"
    "github.com/go-ole/go-ole/oleutil"
)

func main() {
    ole.CoInitialize(0)
    defer ole.CoUninitialize()

    // Create a WinHTTPRequest object
    unknown, _ := oleutil.CreateObject("WinHTTP.WinHTTPRequest.5.1")
    request, _ := unknown.QueryInterface(ole.IID_IDispatch)

    // Set the auto login policy to use system credentials
    oleutil.CallMethod(request, "SetAutoLogonPolicy", 0)

    // Open the request with the desired URL
    oleutil.CallMethod(request, "Open", "GET", "http://example.com", false)

    // Send the request
    oleutil.CallMethod(request, "Send")

    // Retrieve the response text
    resp := oleutil.MustGetProperty(request, "ResponseText")

    // Print the response
    fmt.Println(resp.ToString())
}</code>