Update app.py

app.py

@@ -9,20 +9,25 @@ from langchain_core.messages import HumanMessage
 
 # (Keep Constants as is)
 DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
-
-class BasicAgent:
-    """A langgraph agent."""
-    def __init__(self):
+ class BasicAgent:
+     """A langgraph agent."""
+     def __init__(self):
+        # print("BasicAgent initialized.")
+        # self.graph = EsiAgent()
         print("BasicAgent initialized.")
-        self.graph = EsiAgent()
-
-    def __call__(self, question: str) -> str:
-        print(f"Agent received question (first 50 chars): {question[:50]}...")
-        # Wrap the question in a HumanMessage from langchain_core
-        messages = [HumanMessage(content=question)]
-        messages = self.graph.invoke({"messages": messages})
-        answer = messages['messages'][-1].content
+        # Instantiate your EsiAgent (with run(question) API)
+        self.agent = EsiAgent()
+
+     def __call__(self, question: str) -> str:
+         print(f"Agent received question (first 50 chars): {question[:50]}...")
+        # # Wrap the question in a HumanMessage from langchain_core
+        # messages = [HumanMessage(content=question)]
+        # messages = self.graph.invoke({"messages": messages})
+        # answer = messages['messages'][-1].content
         return answer[14:]
+        # Delegate to your agent.run(), which handles graph.invoke internally
+        result = self.agent.run(question)
+        return result
 
 def run_and_submit_all( profile: gr.OAuthProfile | None):
     """