public static IEnumerable <IElement> WrapAll(this IEnumerable <ElementNode> nodesToWrap)
 {
     return(nodesToWrap.Select(x => SparkWrapperFactory.CreateWrapper(x)).Cast <IElement>());
 }
 public static IEnumerable <INode> WrapAll(this IEnumerable <Node> nodesToWrap)
 {
     return(nodesToWrap.Select(x => SparkWrapperFactory.CreateWrapper(x)));
 }