static ProjectItemGroupElement addItemGroup(ProjectRootElement root, string label, string condition, Blah4 blah4)
        {
            ProjectItemGroupElement ret = addItemGroup(root);

            if (!string.IsNullOrEmpty(label))
                ret.Label = label;
            if (!string.IsNullOrEmpty(condition))
                ret.Condition = condition;
            if (blah4 != null)
                blah4(ret);
            return ret;
        }
 static ProjectItemGroupElement addItemGroup(ProjectRootElement root, Blah4 blah4)
 {
     return addItemGroup(root, null, null, blah4);
 }