feat(wxapi): 封装公众平台、开放平台接口

src/SKIT.FlurlHttpClient.Wechat.Api/Models/Card/SubMerchant/CardSubMerchantBatchGetRequest.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /card/submerchant/batchget 接口的请求。</para>
+    /// </summary>
+    public class CardSubMerchantBatchGetRequest : WechatApiRequest
+    {
+        /// <summary>
+        /// 获取或设置起始的子商户 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("begin_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("begin_id")]
+        public string? NextMerchantId { get; set; } = "0";
+
+        /// <summary>
+        /// 获取或设置分页每页数量。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("limit")]
+        [System.Text.Json.Serialization.JsonPropertyName("limit")]
+        public int Limit { get; set; } = 10;
+
+        /// <summary>
+        /// 获取或设置指定子商户状态。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("status")]
+        [System.Text.Json.Serialization.JsonPropertyName("status")]
+        public string? Status { get; set; }
+    }
+}