stash httpx response inside StreamResponse

Author: tbarbugli

getstream/stream_response.py

@@ -10,6 +10,7 @@
 
 class StreamResponse(Generic[T]):
     def __init__(self, response: httpx.Response, data: T):
+        self.__response = response
         self.__headers = response.headers
         self.__status_code = response.status_code
         self.__rate_limit = extract_rate_limit(response)