Update app.py

app.py

@@ -11,6 +11,10 @@ from Gradio_UI import GradioUI
 def add_event_to_calendar(event_name: str, start: str, end: str) -> str:
     """A tool that creates events on Google Calendar using a service account.
        Time format: 2015-05-28T09:00:00+01:00 (WAT = UTC+1)
+       Args:
+        event_name: The name of the event.
+        start: The start time of the event represented as a datetime str.
+        end: The end time of the event respresented as a datetime str.
     """
     from google.oauth2 import service_account
     from googleapiclient.discovery import build