Update tool.py

tool.py

@@ -4,16 +4,16 @@ from typing import Optional
 class SimpleTool(Tool):
     name = "get_travel_duration"
     description = "Gets the travel time in car between two places."
-    inputs = {"start_location":{"type":"string","description":"the place from which you start your ride"},"destination_location":{"type":"string","description":"the place of arrival"},"transportation":{"type":"string","nullable":True,"description":"The transportation mode, in 'driving', 'walking', 'bicycling', or 'transit'.}}
+    inputs = {"start_location":{"type":"string","description":"the place from which you start your ride"},"destination_location":{"type":"string","description":"the place of arrival"},"transportation_mode":{"type":"string","nullable":True,"description":"The transportation mode, in 'driving', 'walking', 'bicycling', or 'transit'.}}
     output_type = "string"
 
-    def forward(self, start_location: str, destination_location: str, transportation: Optional[string] = None) -> str:
+    def forward(self, start_location: str, destination_location: str, transportation_mode: Optional[string] = None) -> str:
         """Gets the travel time in car between two places.
     
         Args:
             start_location: the place from which you start your ride
             destination_location: the place of arrival
-            transportation: The transportation mode, in 'driving', 'walking', 'bicycling', or 'transit'.
+            transportation_mode: The transportation mode, in 'driving', 'walking', 'bicycling', or 'transit'.
         """
         import googlemaps
         import os