error fixes

tools/final_answer.py

@@ -27,7 +27,7 @@ class FinalAnswerTool(Tool):
         return answer
 
     forward = __call__
-    
+
     def __str__(self) -> str:
         return "final_answer"
     
@@ -38,4 +38,4 @@ class FinalAnswerTool(Tool):
     def argument_descriptions(self) -> dict:
         return {
             "answer": "The final answer to provide to the user."
-        } 
+        }

tools/search.py

@@ -56,4 +56,6 @@ class DuckDuckGoSearchTool(Tool):
             
             return "\n\n".join(results)
         except Exception as e:
-            return f"Error searching for {query}: {str(e)}" 
+            return f"Error searching for {query}: {str(e)}" 
+
+    forward = __call__ 

tools/weather.py

@@ -42,4 +42,6 @@ class WeatherTool(Tool):
             else:
                 return f"Error fetching weather for {location}: {data.get('message', 'Unknown error')}"
         except Exception as e:
-            return f"Error fetching weather for {location}: {str(e)}" 
+            return f"Error fetching weather for {location}: {str(e)}"
+
+    forward = __call__