Merge pull request #380 from notion-dotnet/371-add-after-body-param-to-append-block-api

A support for `after` parameter to the Append block children API

Author: KoditkarVedant

Src/Notion.Client/Api/Blocks/RequestParams/BlocksAppendChildrenParameters.cs

@@ -5,5 +5,7 @@ namespace Notion.Client
     public class BlocksAppendChildrenParameters : IBlocksAppendChildrenBodyParameters
     {
         public IEnumerable<IBlock> Children { get; set; }
+
+        public string After { get; set; }
     }
 }

Src/Notion.Client/Api/Blocks/RequestParams/IBlocksAppendChildrenBodyParameters.cs

@@ -8,5 +8,11 @@ public interface IBlocksAppendChildrenBodyParameters
     {
         [JsonProperty("children")]
         IEnumerable<IBlock> Children { get; set; }
+
+        /// <summary>
+        ///     The ID of the existing block that the new block should be appended after.
+        /// </summary>
+        [JsonProperty("after")]
+        public string After { get; set; }
     }
 }