From ba843abaf73e893ebe8b643264f2f62fba1f5abe Mon Sep 17 00:00:00 2001
From: Robbi Bishop-Taylor <Robbi.BishopTaylor@ga.gov.au>
Date: Fri, 20 Dec 2024 17:14:52 +1100
Subject: [PATCH] Attempt to fix "unsupported operand type(s) for | error"

---
 pyTMD/math.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pyTMD/math.py b/pyTMD/math.py
index 3206db6..ae4613a 100644
--- a/pyTMD/math.py
+++ b/pyTMD/math.py
@@ -15,6 +15,8 @@
     Updated 12/2024: added function to calculate an aliasing frequency
     Written 11/2024
 """
+from __future__ import annotations
+
 import numpy as np
 from scipy.special import factorial