feat: direct call download api by cgo dart

ui/flutter/lib/api/model/create_task_batch.g.dart

@@ -0,0 +1,33 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'create_task_batch.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+CreateTaskBatch _$CreateTaskBatchFromJson(Map<String, dynamic> json) =>
+    CreateTaskBatch(
+      reqs: (json['reqs'] as List<dynamic>?)
+              ?.map((e) => Request.fromJson(e as Map<String, dynamic>))
+              .toList() ??
+          const [],
+      opt: json['opt'] == null
+          ? null
+          : Option.fromJson(json['opt'] as Map<String, dynamic>),
+    );
+
+Map<String, dynamic> _$CreateTaskBatchToJson(CreateTaskBatch instance) {
+  final val = <String, dynamic>{
+    'reqs': instance.reqs,
+  };
+
+  void writeNotNull(String key, dynamic value) {
+    if (value != null) {
+      val[key] = value;
+    }
+  }
+
+  writeNotNull('opt', instance.opt);
+  return val;
+}