From d1a9da3514414823bd7f883002c17727d6918b09 Mon Sep 17 00:00:00 2001
From: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
Date: Fri, 22 May 2026 22:29:15 +0000
Subject: [PATCH] fix(gemini realtime): cast merged realtimeInputConfig for
 typeddict assignment

mypy flagged the assignment of the merged dict into
BidiGenerateContentSetup.realtimeInputConfig with [typeddict-item]: the
intermediate variable widens to dict[Any, Any], losing the TypedDict
narrowing the previous dict-literal form had.
---
 litellm/llms/gemini/realtime/transformation.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/litellm/llms/gemini/realtime/transformation.py b/litellm/llms/gemini/realtime/transformation.py
index e85a9bf52c3..f5634954951 100644
--- a/litellm/llms/gemini/realtime/transformation.py
+++ b/litellm/llms/gemini/realtime/transformation.py
@@ -397,7 +397,10 @@ class GeminiRealtimeConfig(BaseRealtimeConfig):
                     **original_automatic_activity_detection,
                     **new_automatic_activity_detection,
                 }
-            follow_up_setup["realtimeInputConfig"] = merged_realtime_input_config
+            follow_up_setup["realtimeInputConfig"] = cast(
+                BidiGenerateContentRealtimeInputConfig,
+                merged_realtime_input_config,
+            )
         verbose_logger.debug(
             "Gemini Realtime: Forwarding session.update as follow-up setup"
         )