opt models

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

lib/models_new/video/video_ai_conclusion/part_subtitle.dart

@@ -0,0 +1,13 @@
+class PartSubtitle {
+  int? startTimestamp;
+  int? endTimestamp;
+  String? content;
+
+  PartSubtitle({this.startTimestamp, this.endTimestamp, this.content});
+
+  factory PartSubtitle.fromJson(Map<String, dynamic> json) => PartSubtitle(
+        startTimestamp: json['start_timestamp'] as int?,
+        endTimestamp: json['end_timestamp'] as int?,
+        content: json['content'] as String?,
+      );
+}