fix: 🐛 TypeError when specifying thread_name in Webhook.send

CHANGELOG.md

@@ -103,6 +103,8 @@ These changes are available on the `master` branch, but have not yet been releas
   ([#2739](https://github.com/Pycord-Development/pycord/pull/2739))
 - Fixed missing `None` type hints in `Select.__init__`.
   ([#2746])(https://github.com/Pycord-Development/pycord/pull/2746)
+- Fixed `TypeError` when specifying `thread_name` in `Webhook.send`
+  ([#2761])(https://github.com/Pycord-Development/pycord/pull/2761)
 
 ### Changed
 

discord/webhook/async_.py

@@ -345,6 +345,7 @@ def execute_webhook(
             params["thread_id"] = thread_id
 
         if thread_name:
+            payload = payload or {}
             payload["thread_name"] = thread_name
 
         route = Route(

discord/webhook/sync.py

@@ -315,6 +315,7 @@ def execute_webhook(
             params["thread_id"] = thread_id
 
         if thread_name:
+            payload = payload or {}
             payload["thread_name"] = thread_name
 
         route = Route(