Use 3.9 syntax

Author: pamelafox

tests/verify_functions.py

@@ -1,4 +1,5 @@
 import os
+from typing import Union
 
 import azure.identity
 import openai
@@ -9,7 +10,7 @@
 load_dotenv()
 API_HOST = os.getenv("API_HOST")
 
-client: openai.OpenAI | openai.AzureOpenAI
+client: Union[openai.OpenAI, openai.AzureOpenAI]
 
 if API_HOST == "azure":
 

tests/verify_openai.py

@@ -1,4 +1,5 @@
 import os
+from typing import Union
 
 import azure.identity
 import openai
@@ -9,7 +10,7 @@
 load_dotenv()
 API_HOST = os.getenv("API_HOST")
 
-client: openai.OpenAI | openai.AzureOpenAI
+client: Union[openai.OpenAI, openai.AzureOpenAI]
 
 if API_HOST == "azure":
     if (azure_openai_version := os.getenv("AZURE_OPENAI_VERSION")) is None: