adding packages

deprecated/widget_gen/lib/src/template/rows.dart

@@ -0,0 +1,12 @@
+class Rows<T> {
+  final List<T> _templates = [];
+
+  void add(T template) => _templates.add(template);
+
+  bool get isEmpty => _templates.isEmpty;
+  List get templates => _templates;
+
+  @override
+  String toString() =>
+      _templates.map((t) => t.toString()).where((s) => s.isNotEmpty).join('\n');
+}