From a90852a7af87673dd0385de3721b9fa82e3bcf10 Mon Sep 17 00:00:00 2001
From: Erik Wrede <erikwrede@users.noreply.github.com>
Date: Sat, 9 Nov 2024 17:26:50 +0100
Subject: [PATCH] chore: code style

---
 graphene/types/union.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/graphene/types/union.py b/graphene/types/union.py
index 809ed01b..3d10418e 100644
--- a/graphene/types/union.py
+++ b/graphene/types/union.py
@@ -56,7 +56,7 @@ class Union(UnmountedType, BaseType):
             isinstance(types, (list, tuple)) and len(types) > 0
         ), f"Must provide types for Union {cls.__name__}."
 
-        if _meta is None:
+        if not _meta:
             _meta = UnionOptions(cls)
 
         _meta.types = types