From ab6411fe39aadeaf9a7065566d45c2e47898a1da Mon Sep 17 00:00:00 2001
From: Pilzinsel64 <pascal.schedel@dr-schneider.com>
Date: Thu, 12 Dec 2024 07:31:25 +0100
Subject: [PATCH] improvements

---
 Pilz.Net/Api/ApiClient.cs | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/Pilz.Net/Api/ApiClient.cs b/Pilz.Net/Api/ApiClient.cs
index d4cce38..f19bf08 100644
--- a/Pilz.Net/Api/ApiClient.cs
+++ b/Pilz.Net/Api/ApiClient.cs
@@ -1,6 +1,4 @@
 using Castle.Core.Logging;
-using Pilz.Extensions.Collections;
-using System.Text.Encodings.Web;
 using System.Web;
 
 namespace Pilz.Net.Api;
@@ -102,9 +100,9 @@ public class ApiClient(string apiUrl) : IApiClient
         }));
     }
 
-    protected virtual string ConvertParameter(object @param)
+    protected virtual string? ConvertParameter(object? @param)
     {
-        return (string)Convert.ChangeType(@param, typeof(string));
+        return (string?)Convert.ChangeType(@param, typeof(string));
     }
 
     protected virtual string? EncodeAuthKey()