From 2301d79ed2b08b4b76066ff0598236468ad656e7 Mon Sep 17 00:00:00 2001
From: A Vertex SDK engineer <vertex-sdk-bot@google.com>
Date: Fri, 19 Jan 2024 10:17:10 -0800
Subject: [PATCH] fix: fix typo in raise exception when tool is unsupported

PiperOrigin-RevId: 599869191
---
 vertexai/generative_models/_generative_models.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vertexai/generative_models/_generative_models.py b/vertexai/generative_models/_generative_models.py
index 4656081971..aafdb3b3d2 100644
--- a/vertexai/generative_models/_generative_models.py
+++ b/vertexai/generative_models/_generative_models.py
@@ -294,7 +294,7 @@ def _prepare_request(
                 elif isinstance(tool, Tool):
                     gapic_tools.append(tool._raw_tool)
                 else:
-                    raise TypeError("Unexpected tool type: {tool}.")
+                    raise TypeError(f"Unexpected tool type: {tool}.")
 
         return gapic_prediction_service_types.GenerateContentRequest(
             # The `model` parameter now needs to be set for the vision models.