opt models

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

lib/models_new/history/cursor.dart

@@ -0,0 +1,15 @@
+class Cursor {
+  int? max;
+  int? viewAt;
+  String? business;
+  int? ps;
+
+  Cursor({this.max, this.viewAt, this.business, this.ps});
+
+  factory Cursor.fromJson(Map<String, dynamic> json) => Cursor(
+        max: json['max'] as int?,
+        viewAt: json['view_at'] as int?,
+        business: json['business'] as String?,
+        ps: json['ps'] as int?,
+      );
+}