fix(client)!: interpret null as omitted in some properties

Author: stainless-app[bot]

src/ArcadeDotnet/Models/Admin/AuthProviders/AuthProviderCreateParams.cs

@@ -24,6 +24,11 @@ public List<AuthProviderResponse>? Items
         }
         init
         {
+            if (value == null)
+            {
+                return;
+            }
+
             this._properties["items"] = JsonSerializer.SerializeToElement(
                 value,
                 ModelBase.SerializerOptions
@@ -42,6 +47,11 @@ public long? Limit
         }
         init
         {
+            if (value == null)
+            {
+                return;
+            }
+
             this._properties["limit"] = JsonSerializer.SerializeToElement(
                 value,
                 ModelBase.SerializerOptions
@@ -60,6 +70,11 @@ public long? Offset
         }
         init
         {
+            if (value == null)
+            {
+                return;
+            }
+
             this._properties["offset"] = JsonSerializer.SerializeToElement(
                 value,
                 ModelBase.SerializerOptions
@@ -78,6 +93,11 @@ public long? PageCount
         }
         init
         {
+            if (value == null)
+            {
+                return;
+            }
+
             this._properties["page_count"] = JsonSerializer.SerializeToElement(
                 value,
                 ModelBase.SerializerOptions
@@ -96,6 +116,11 @@ public long? TotalCount
         }
         init
         {
+            if (value == null)
+            {
+                return;
+            }
+
             this._properties["total_count"] = JsonSerializer.SerializeToElement(
                 value,
                 ModelBase.SerializerOptions