googleapis
diff --git a/‎tests/unit/vertex_langchain/test_agent_engines.py
Lines changed: 1 addition & 1 deletion b/‎tests/unit/vertex_langchain/test_agent_engines.py
Lines changed: 1 addition & 1 deletion
@@ -2870,7 +2870,7 @@ def test_update_class_methods_spec_with_registered_operation_not_found(self):
                     "register the API methods: "
                     "https://cloud.google.com/vertex-ai/generative-ai/docs/agent-engine/develop/custom#custom-methods. "
                     "Error: {Unsupported api mode: `UNKNOWN_API_MODE`, "
-                    "Supported modes are: ``, `async`, `stream` and `async_stream`.}"
+                    "Supported modes are: ``, `async`, `async_stream`, `stream`.}"
                 ),
             ),
         ],