如何将NSURLConnection sendSynchronousRequest更改为包含用于HTTPS连接的基本身份验证

let url = URL(string: "https://example.com/api")

let request = NSMutableURLRequest(url: url!)
request.httpMethod = "GET"

let username = "your_username"
let password = "your_password"
let loginString = "\(username):\(password)"

if let loginData = loginString.data(using: String.Encoding.utf8) {
    let base64LoginString = loginData.base64EncodedString(options: [])
    request.setValue("Basic \(base64LoginString)", forHTTPHeaderField: "Authorization")
}

var response: URLResponse?
var responseData: Data?
do {
    responseData = try NSURLConnection.sendSynchronousRequest(request as URLRequest, returning: &response)
} catch let error {
    print("Error: \(error)")
}