Fix invalid type definition

mvantellingen · mvantellingen · commit 4388dddbc9eb · 2022-11-03T08:10:12.000+01:00
diff --git a/src/zeep/client.py b/src/zeep/client.py
@@ -51,7 +51,7 @@ class Client:
 
     """
 
-    _default_transport = typing.Union[Transport, AsyncTransport]
+    _default_transport: typing.Union[Transport, AsyncTransport] = Transport
 
     def __init__(
         self,
