Update app.py

app.py

@@ -20,6 +20,11 @@ load_dotenv()
 logging.basicConfig(level=logging.INFO)
 logger = logging.getLogger(__name__)
 
+# Custom exception for application errors
+class GitHubRAGError(Exception):
+    """Custom exception for GitHub RAG application errors"""
+    pass
+
 # Fetch API key for SambaNova
 SAMBANOVA_API_KEY = os.getenv("SAMBANOVA_API_KEY")
 if not SAMBANOVA_API_KEY:
@@ -87,9 +92,9 @@ with st.sidebar:
                         docs = loader.load_data()
 
                         embed_model = HuggingFaceEmbedding(
-    model_name="nomic-ai/nomic-embed-text-v2-moe",
-    trust_remote_code=True,
-)
+                        model_name="nomic-ai/nomic-embed-text-v2-moe",
+                        trust_remote_code=True,
+                    )
                         Settings.embed_model = embed_model
 
                         llm_predictor = load_llm()