Update app.py

app.py

@@ -22,9 +22,6 @@ import threading
 llm_list = ['Mistral-7B-Instruct-v0.2','Mixtral-8x7B-Instruct-v0.1']
 blablador_base = "https://helmholtz-blablador.fz-juelich.de:8000/v1"
 # Environment variables
-os.environ['LANGCHAIN_TRACING_V2'] = 'true'
-os.environ['LANGCHAIN_ENDPOINT'] = 'https://api.smith.langchain.com'
-os.environ['LANGCHAIN_API_KEY'] = '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'
 directory_path = "ohw_proj_chorma_db"
 file_path = "ohw_proj_chorma_db.pcl"
 # Function to update your retriever
@@ -124,7 +121,7 @@ def clear_chat_history():
 
 # Sidebar
 with st.sidebar:
-    st.image("Screenshot 2024-08-30 at 19.41.09.png", use_column_width=True)  # Replace with your actual file path
+    st.image("logo_no_bg.png", use_column_width=True)  # Replace with your actual file path
     st.title("OHW Assistant")
     selected_model = st.sidebar.selectbox('Choose a LLM model',
                                            llm_list,