Update app.py

app.py

@@ -17,7 +17,8 @@ def my_custom_tool(country:str, indicator:str)->str: #it's import to specify the
         statistic: the value of the statistic requested as a string
     """
     search = DuckDuckGoSearchRun()
-    return f"The {indicator} of {country} is :"{str(search.invoke(f"What is the {indicator} of {country}"))}
+    indicator_val = search.invoke(f"What is the {indicator} of {country}")
+    return f"The {indicator} of {country} is :"{str(indicator_val)}
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str: