Update app.py

app.py

@@ -2,14 +2,6 @@ import gradio as gr
 import getpass
 import os
 
-def _set_if_undefined(var: str):
-    if not os.environ.get(var):
-        os.environ[var] = getpass.getpass(f"Please provide your {var}")
-
-_set_if_undefined("OPENAI_API_KEY")
-_set_if_undefined("LANGCHAIN_API_KEY")
-_set_if_undefined("TAVILY_API_KEY")
-
 # Optional, add tracing in LangSmith
 os.environ["LANGCHAIN_TRACING_V2"] = "true"
 os.environ["LANGCHAIN_PROJECT"] = "Multi-agent Collaboration"
@@ -102,7 +94,6 @@ def agent_node(state, agent, name):
         "sender": name,
     }
 
-
 llm = ChatOpenAI(model="gpt-4-1106-preview")
 
 # Research agent and node