From cbe4d87b432c49b63534a790d4dc638d7db907ab Mon Sep 17 00:00:00 2001
From: konstin <konstin@mailbox.org>
Date: Sat, 5 Oct 2019 14:47:02 +0200
Subject: [PATCH] Add caching to _user_overrides

---
 dataclasses_json/core.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dataclasses_json/core.py b/dataclasses_json/core.py
index 35318d1b..a199abe2 100644
--- a/dataclasses_json/core.py
+++ b/dataclasses_json/core.py
@@ -45,6 +45,7 @@ def default(self, o) -> Json:
         return result
 
 
+@lru_cache(maxsize=128)
 def _user_overrides(cls):
     confs = ['encoder', 'decoder', 'mm_field', 'letter_case']
     FieldOverride = namedtuple('FieldOverride', confs)