From feeb6a59177a9672eed6ed500de8c2d7341e7ac0 Mon Sep 17 00:00:00 2001
From: Nao Pross <np@0hm.ch>
Date: Sun, 12 May 2024 17:06:10 +0200
Subject: Forgot to make StateMonad a frozen dataclass

in commit 75e0780acdd537e43e1ec8c7228e68ead13515cf
---
 polymatrix/statemonad.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/polymatrix/statemonad.py b/polymatrix/statemonad.py
index dc680de..bfd63de 100644
--- a/polymatrix/statemonad.py
+++ b/polymatrix/statemonad.py
@@ -17,7 +17,7 @@ U = TypeVar("U")
 V = TypeVar("V")
 
 
-@dataclass
+@dataclass(frozen=True)
 class StateMonad(Generic[State, U]):
     apply_func: Callable[[State], tuple[State, U]]
 
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