public FunctionNode(TableFunction function) : base(function.Name)
{
TableFunction = function;
ImageKey = "table-function";
SelectedImageKey = "table-function";
Columns = function.Columns.Select(col => new ColumnNode(col)).ToList();
var folder = new FolderNode("Parameters", function.Arguments.Count());
Nodes.Add(folder);
folder.Nodes.AddRange(function.Arguments.Select(p => new ParameterNode(p)).ToArray());
}