Fix argument and doc string for search tool

app.py

@@ -83,18 +83,18 @@ class BasicAgent:
 
     def search_tool(self, question: str, max_length: int = 2048) -> str:
         """
-        Use DuckDuckGo’s Instant Answer API to fetch a direct answer.
+        Use DuckDuckGo’s API to fetch a direct answer.
         
         Args:
-            query: The question to ask.
+            question: The question to ask.
             max_length: Max chars to return.
         Returns:
-            Instant answer text, or a fallback message.
+            Answer text, or a fallback message.
         """
         print(f"Calling search tool with: {question}, max_lentgh: {max_length}")
         with DDGS() as ddgs:
-            hits = list(ddgs.text("What is the current temperature in Chisinau?", max_results=5))
-            print("Got", hits)
+            hits = list(ddgs.text(question, max_results=5))
+            print("Got from DDGS:", hits)
             ans = "\n".join((r.get("body") or r.get("snippet", "") for r in hits))
 
         if not ans: