test(streamable-http): keep reconnect fake covered

Author: Jianke LIN

tests/client/test_streamable_http.py

@@ -10,6 +10,7 @@
 import json
 from collections.abc import AsyncIterator, Callable, Mapping
 from typing import Any
+from types import SimpleNamespace
 
 import anyio
 import httpx
@@ -122,11 +123,7 @@ async def __aexit__(self, *args: object) -> None:
             return None
 
         async def aiter_sse(self) -> object:
-            yield type(
-                "SSE",
-                (),
-                {"event": "message", "data": "", "id": f"event-{reconnect_attempts}", "retry": 0},
-            )()
+            yield SimpleNamespace(event="message", data="", id=f"event-{reconnect_attempts}", retry=0)
 
     def connect_sse(*args: object, **kwargs: object) -> PrimingOnlyEventSource:
         return PrimingOnlyEventSource()