Update file page property

Src/Notion.Client/Models/File/ExternalFileWithName.cs

@@ -0,0 +1,18 @@
+using Newtonsoft.Json;
+
+namespace Notion.Client
+{
+    public class ExternalFileWithName : FileObjectWithName
+    {
+        public override string Type => "external";
+
+        [JsonProperty("external")]
+        public Info External { get; set; }
+
+        public class Info
+        {
+            [JsonProperty("url")]
+            public string Url { get; set; }
+        }
+    }
+}

Src/Notion.Client/Models/File/FileObjectWithName.cs

@@ -0,0 +1,17 @@
+using JsonSubTypes;
+using Newtonsoft.Json;
+
+namespace Notion.Client
+{
+    [JsonConverter(typeof(JsonSubtypes), "type")]
+    [JsonSubtypes.KnownSubType(typeof(UploadedFileWithName), "file")]
+    [JsonSubtypes.KnownSubType(typeof(ExternalFileWithName), "external")]
+    public abstract class FileObjectWithName
+    {
+        [JsonProperty("type")]
+        public virtual string Type { get; set; }
+
+        [JsonProperty("name")]
+        public string Name { get; set; }
+    }
+}

Src/Notion.Client/Models/File/UploadedFileWithName.cs

@@ -0,0 +1,22 @@
+using System;
+using Newtonsoft.Json;
+
+namespace Notion.Client
+{
+    public class UploadedFileWithName : FileObjectWithName
+    {
+        public override string Type => "file";
+
+        [JsonProperty("file")]
+        public Info File { get; set; }
+
+        public class Info
+        {
+            [JsonProperty("url")]
+            public string Url { get; set; }
+
+            [JsonProperty("expiry_time")]
+            public DateTime ExpiryTime { get; set; }
+        }
+    }
+}

Src/Notion.Client/Models/PropertyValue/FilesPropertyValue.cs

@@ -6,11 +6,6 @@ public class FilesPropertyValue : PropertyValue
     {
         public override PropertyValueType Type => PropertyValueType.Files;
 
-        public List<FileValue> Files { get; set; }
-    }
-
-    public class FileValue
-    {
-        public string Name { get; set; }
+        public List<FileObjectWithName> Files { get; set; }
     }
 }