refa: article (#757)

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/models/dynamics/opus_detail/text.dart

@@ -0,0 +1,17 @@
+import 'node.dart';
+
+class ParagraphText {
+  List<Node>? nodes;
+
+  ParagraphText({this.nodes});
+
+  factory ParagraphText.fromJson(Map<String, dynamic> json) => ParagraphText(
+        nodes: (json['nodes'] as List<dynamic>?)
+            ?.map((e) => Node.fromJson(e as Map<String, dynamic>))
+            .toList(),
+      );
+
+  Map<String, dynamic> toJson() => {
+        'nodes': nodes?.map((e) => e.toJson()).toList(),
+      };
+}