opt handle res

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

lib/models/media_list/coin.dart

@@ -0,0 +1,11 @@
+class Coin {
+  int? maxNum;
+  int? coinNumber;
+
+  Coin({this.maxNum, this.coinNumber});
+
+  factory Coin.fromJson(Map<String, dynamic> json) => Coin(
+        maxNum: json['max_num'] as int?,
+        coinNumber: json['coin_number'] as int?,
+      );
+}