Update app.py

app.py

@@ -18,6 +18,37 @@ def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return
     """
     return "What magic will you build ?"
 
+@tool
+def get_travel_duration(start_location: str, destination_location: str, transportation_mode: Optional[str] = None) -> str:
+    """Gets the travel time between two places.
+
+    Args:
+        start_location: the place from which you start your ride
+        destination_location: the place of arrival
+        transportation_mode: The transportation mode, in 'driving', 'walking', 'bicycling', or 'transit'. Defaults to 'driving'.
+    """
+    import os   # All imports are placed within the function, to allow for sharing to Hub.
+    import googlemaps
+    from datetime import datetime
+
+    gmaps = googlemaps.Client(os.getenv("GMAPS_API_KEY"))
+
+    if transportation_mode is None:
+        transportation_mode = "driving"
+    try:
+        directions_result = gmaps.directions(
+            start_location,
+            destination_location,
+            mode=transportation_mode,
+            departure_time=datetime(2025, 6, 6, 11, 0), # At 11, date far in the future
+        )
+        if len(directions_result) == 0:
+            return "No way found between these places with the required transportation mode."
+        return directions_result[0]["legs"][0]["duration"]["text"]
+    except Exception as e:
+        print(e)
+        return e       
+    
 @tool
 def get_current_time_in_timezone(timezone: str) -> str:
     """A tool that fetches the current local time in a specified timezone.