From 1cc0af892a1255dc72a579ec3b7dec08068948ae Mon Sep 17 00:00:00 2001
From: Shing Zhan <shing.zhan@gmail.com>
Date: Sun, 14 Jan 2024 11:29:01 +0000
Subject: [PATCH] Freeze GeneticMap class

---
 python/tests/beagle_numba.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/tests/beagle_numba.py b/python/tests/beagle_numba.py
index 03553b907c..8a6cdcc5d2 100644
--- a/python/tests/beagle_numba.py
+++ b/python/tests/beagle_numba.py
@@ -15,7 +15,7 @@
 import tskit
 
 
-@dataclass
+@dataclass(frozen=True)
 class GeneticMap:
     """
     A genetic map having: