feat(wxapi): 封装公众平台、开放平台接口

src/SKIT.FlurlHttpClient.Wechat.Api/Models/CgibinMidas/CgibinMidasCancelPayRequest.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /cgi-bin/midas/cancelpay 接口的请求。</para>
+    /// </summary>
+    public class CgibinMidasCancelPayRequest : CgibinMidasRequestBase
+    {
+        /// <summary>
+        /// 获取或设置订单号。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("bill_no")]
+        [System.Text.Json.Serialization.JsonPropertyName("bill_no")]
+        public string BillNumber { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 获取或设置道具名称。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("pay_item")]
+        [System.Text.Json.Serialization.JsonPropertyName("pay_item")]
+        public string? PayItem { get; set; }
+    }
+}