From 0218fb54d91e7d93843fc9f34e749fb5f74df4a4 Mon Sep 17 00:00:00 2001
From: Ethan Steinberg <ethan.steinberg@gmail.com>
Date: Fri, 16 Aug 2024 08:51:03 -0700
Subject: [PATCH] Older python support

---
 src/meds_reader/__init__.py | 4 ++--
 tests/api_test.py           | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/meds_reader/__init__.py b/src/meds_reader/__init__.py
index 0c7ccc3..ac4b348 100644
--- a/src/meds_reader/__init__.py
+++ b/src/meds_reader/__init__.py
@@ -12,7 +12,7 @@
 import sys
 import warnings
 from multiprocessing.context import SpawnProcess
-from typing import Any, Callable, Iterator, List, Optional, Sequence, Tuple, TypeVar, cast
+from typing import Any, Callable, Iterator, List, Optional, Sequence, Tuple, TypeVar, Union, cast
 
 import numpy as np
 import pandas as pd
@@ -27,7 +27,7 @@
 
 A = TypeVar("A")
 
-WorkEntry = Tuple[bytes, np.ndarray | pd.DataFrame]
+WorkEntry = Tuple[bytes, Union[np.ndarray, pd.DataFrame]]
 
 mp = multiprocessing.get_context("spawn")
 
diff --git a/tests/api_test.py b/tests/api_test.py
index ba8d736..799a621 100644
--- a/tests/api_test.py
+++ b/tests/api_test.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import datetime
 import json
 import os