Update tool.py

tool.py

@@ -20,13 +20,13 @@ class SimpleTool(Tool):
 
         gmaps = googlemaps.Client(os.getenv("GMAPS_API_KEY"))
 
-        if transportation is None:
-            transportation = "transit"
+        if transportation_mode is None:
+            transportation_mode = "transit"
         try:
             directions_result = gmaps.directions(
                 start_location,
                 destination_location,
-                mode=transportation,
+                mode=transportation_mode,
                 departure_time=datetime(2025, 1, 6, 11, 0), # Start on a Monday morning
             )
             return directions_result[0]["legs"][0]["duration"]["text"]