private static IEnumerable <XmlAttribute> GetAttributes(IXmlXPathNode node)
{
var xe = node as XmlElement;
if (xe == null)
{
yield break;
}
foreach (XmlAttribute att in xe.Attributes)
{
yield return(att);
}
}
private static XmlAttribute GetAttribute(IXmlXPathNode node, string name) => node is XmlElement xe ? xe.Attributes[name] : null;