Update app.py

app.py

@@ -7,10 +7,14 @@ _ = load_dotenv(find_dotenv())
 credentials = os.environ["CREDENTIALS"]
 project = os.environ["PROJECT"]
 
-from google.oauth2.service_account import Credentials
+from google.oauth2 import service_account
+#from google.oauth2.service_account import Credentials
 
 credentials = service_account.Credentials.from_service_account_info(credentials)
 
+if credentials.expired:
+    credentials.refresh(Request())
+
 vertexai.init(project = project, 
               location = "us-west1",
              credentials = credentials)