Add prints and logging

app.py

@@ -67,11 +67,15 @@ class BasicAgent:
     def assistant(self, state: State):
         # System message
         textual_description_of_tool="""
-            search_tool(question: str) -> str:
+            search_tool(question: str, max_length: int = 1024) -> str:
                 Search info in the web.
+                Call example:
+                
+                    self.search_tool("Who won the election 2008 in the USA?", max_length = 4096)
             
                 Args:
                     question: Question string
+                    max_length: maximum chars in the output (if exceeded the first "max_length" characters will be taken)
             
                 Returns:
                     A single string containing the info from the web.
@@ -100,7 +104,9 @@ class BasicAgent:
                 A single string containing the info from the web.
         """
         search = DuckDuckGoSearchRun()
-        return search.invoke(question)[:max_length]
+        res = search.invoke(question)
+        print("Search res:", res)
+        return res[:max_length]
     
 
 def run_and_submit_all( profile: gr.OAuthProfile | None):