make sure that test fails

Author: Kludex

instrumentation/opentelemetry-instrumentation-httpx/src/opentelemetry/instrumentation/httpx/__init__.py

@@ -948,7 +948,7 @@ def instrument_client(
                             response_hook=response_hook,
                         ),
                     )
-            client._transport._is_instrumented_by_opentelemetry = True
+            client._is_instrumented_by_opentelemetry = True
         if hasattr(client._transport, "handle_async_request"):
             wrap_function_wrapper(
                 client._transport,
@@ -974,7 +974,7 @@ def instrument_client(
                             async_response_hook=async_response_hook,
                         ),
                     )
-            client._transport._is_instrumented_by_opentelemetry = True
+            client._is_instrumented_by_opentelemetry = True
 
     @staticmethod
     def uninstrument_client(
@@ -989,9 +989,9 @@ def uninstrument_client(
             unwrap(client._transport, "handle_request")
             for transport in client._mounts.values():
                 unwrap(transport, "handle_request")
-            client._transport._is_instrumented_by_opentelemetry = False
+            client._is_instrumented_by_opentelemetry = False
         elif hasattr(client._transport, "handle_async_request"):
             unwrap(client._transport, "handle_async_request")
             for transport in client._mounts.values():
                 unwrap(transport, "handle_async_request")
-            client._transport._is_instrumented_by_opentelemetry = False
+            client._is_instrumented_by_opentelemetry = False