如何使用XDocument.Save保存使用自定义属性缩进的文件

XDocument doc = new XDocument(
    new XElement("Root",
        new XElement("Element",
            new XAttribute("Attribute1", "Value1"),
            new XAttribute("Attribute2", "Value2")
        )
    )
);

XmlWriterSettings settings = new XmlWriterSettings();
settings.Indent = true;

using (XmlWriter writer = XmlWriter.Create("path/to/file.xml", settings))
{
    doc.Save(writer);
}