Change model dir structure

lib/data/model/server/private_key_info.dart

@@ -0,0 +1,48 @@
+import 'dart:convert';
+
+///
+/// Code generated by jsonToDartModel https://ashamp.github.io/jsonToDartModel/
+///
+class PrivateKeyInfo {
+/*
+{
+  "id": "",
+  "private_key": "",
+  "password": ""
+} 
+*/
+
+  late String id;
+  late String privateKey;
+  late String password;
+
+  PrivateKeyInfo(
+    this.id,
+    this.privateKey,
+    this.password,
+  );
+  PrivateKeyInfo.fromJson(Map<String, dynamic> json) {
+    id = json["id"].toString();
+    privateKey = json["private_key"].toString();
+    password = json["password"].toString();
+  }
+  Map<String, dynamic> toJson() {
+    final Map<String, dynamic> data = <String, dynamic>{};
+    data["id"] = id;
+    data["private_key"] = privateKey;
+    data["password"] = password;
+    return data;
+  }
+}
+
+List<PrivateKeyInfo>? getPrivateKeyInfoList(dynamic data) {
+  List<PrivateKeyInfo> ss = [];
+  if (data is String) {
+    data = json.decode(data);
+  }
+  for (var t in data) {
+    ss.add(PrivateKeyInfo.fromJson(t));
+  }
+
+  return ss;
+}