update CHANGELOG

CHANGELOG.md

@@ -45,6 +45,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   being aggregated. A text aggregator can be passed via `text_aggregator` to the
   TTS service.
 
+- Added new `sample_rate` constructor parameter to `TavusVideoService` to allow
+  changing the output sample rate.
+
 - Added new `UltravoxSTTService`.
   (see https://github.com/fixie-ai/ultravox)
 

src/pipecat/services/google/google.py

@@ -1316,9 +1316,12 @@ class GoogleLLMOpenAIBetaService(OpenAILLMService):
 
 
 class GoogleVertexLLMService(OpenAILLMService):
-    """Implements inference with Google's AI models via Vertex AI while maintaining OpenAI API compatibility.
+    """Implements inference with Google's AI models via Vertex AI while
+    maintaining OpenAI API compatibility.
+
     Reference:
     https://cloud.google.com/vertex-ai/generative-ai/docs/multimodal/call-vertex-using-openai-library
+
     """
 
     class InputParams(OpenAILLMService.InputParams):