google: updgrade OpenAILLMContext to GoogleLLMContext

CHANGELOG.md

@@ -47,6 +47,9 @@ stt = DeepgramSTTService(..., live_options=LiveOptions(model="nova-2-general"))
 
 ### Fixed
 
+- Fixed an issue that was not allowing to pass an `OpenAILLMContext` to create
+  `GoogleLLMService`'s context aggregators.
+
 - Fixed a `ElevenLabsTTSService`, `FishAudioTTSService`, `LMNTTTSService` and
   `PlayHTTTSService` issue that was resulting in audio requested before an
   interruption being played after an interruption.

src/pipecat/services/google/google.py

@@ -1176,6 +1176,8 @@ class GoogleLLMService(LLMService):
     def create_context_aggregator(
         context: OpenAILLMContext, *, assistant_expect_stripped_words: bool = True
     ) -> GoogleContextAggregatorPair:
+        if isinstance(context, OpenAILLMContext):
+            context = GoogleLLMContext.upgrade_to_google(context)
         user = GoogleUserContextAggregator(context)
         assistant = GoogleAssistantContextAggregator(
             context, expect_stripped_words=assistant_expect_stripped_words