some fixes to do network requests

Author: Folleach

GeometryDashAPI/Serialization/Printers.cs

@@ -21,7 +21,7 @@ internal class Printers
         public static ReadOnlySpan<char> GetOrDefault_String__(string value) => value.ToString();
         public static ReadOnlySpan<char> GetOrDefault_BlockGroup__(BlockGroup value) => value.ToString();
         public static ReadOnlySpan<char> GetOrDefault_Hsv__(Hsv value) => Hsv.Parse(value);
-        public static ReadOnlySpan<char> GetOrDefault_Pagination__(ReadOnlySpan<char> data) => "todo: implement print pagination";
+        public static ReadOnlySpan<char> GetOrDefault_Pagination__(Pagination data) => "todo: implement print pagination";
         public static ReadOnlySpan<char> GetOrDefault_Guidelines__(Guidelines value) => Guidelines.Parse(value);
 
         public delegate void PrinterAppend<in TInstance>(TInstance instance, StringBuilder destination);

GeometryDashAPI/Server/Responses/LevelPageResponse.cs

@@ -5,6 +5,7 @@
 namespace GeometryDashAPI.Server.Responses
 {
     [Sense("#")]
+    [AsStruct]
     public class LevelPageResponse : GameObject
     {
         [GameProperty("0")]