Update HfApiModel to use the 'google/gemma-3-27b-it' model in the Agent class.

app.py

@@ -156,7 +156,7 @@ def generate_audio(prompt: str) -> object:
 ## agent definition
 class Agent:
     def __init__(self, ):
-        client = HfApiModel("deepseek-ai/DeepSeek-R1-0528", provider="nebius", api_key=os.getenv("NEBIUS_API_KEY"))
+        client = HfApiModel("google/gemma-3-27b-it", provider="nebius", api_key=os.getenv("NEBIUS_API_KEY"))
         self.agent = CodeAgent(
             model=client,
             tools=[DuckDuckGoSearchTool(max_results=5), VisitWebpageTool(max_output_length=20000), generate_image, download_images, transcribe_audio],