From 9ce96a76010b262dcffcb38962a9ed54085a0bea Mon Sep 17 00:00:00 2001
From: MilesCranmer <miles.cranmer@gmail.com>
Date: Thu, 28 Nov 2024 12:52:46 +0000
Subject: [PATCH] fix: TypeAlias definition on older Python

---
 pysr/expression_specs.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pysr/expression_specs.py b/pysr/expression_specs.py
index 20ccf9ff..c7ac5327 100644
--- a/pysr/expression_specs.py
+++ b/pysr/expression_specs.py
@@ -5,7 +5,7 @@
 try:
     from typing import TypeAlias
 except ImportError:
-    TypeAlias = Any
+    TypeAlias = NewType("TypeAlias", Any)
 
 import numpy as np
 import pandas as pd