[Bug]: Validation fails for meeting_start and meeting_end activities

[Carter-Apas]

Bug Description

When running the bot service I can see the events occuring for meeting_start and meeting_end.

The validation fails across all input attributes because they are in snake_case.

Fixing files:
packages/api/src/microsoft/teams/api/activities/event/meeting_end.py
packages/api/src/microsoft/teams/api/activities/event/meeting_start.py

To accept snakeCase population seems to work fine

Steps to Reproduce

1. Run the bot service.
2. Install the app in meeting.
3. Leave and join meeting. Attempt to hook into the @app.on_meeting_end and @app.on_meeting_start
4. Validation error

Expected Behavior

No validation error and usable input

Actual Behavior

Validation Error:
[ERROR] @teams/app.HttpPlugin {
[ERROR] @teams/app.HttpPlugin "type": "missing",
[ERROR] @teams/app.HttpPlugin "loc": [
[ERROR] @teams/app.HttpPlugin "event",
[ERROR] @teams/app.HttpPlugin "application/vnd.microsoft.meetingEnd",
[ERROR] @teams/app.HttpPlugin "value",
[ERROR] @teams/app.HttpPlugin "meetingType"
[ERROR] @teams/app.HttpPlugin ],
[ERROR] @teams/app.HttpPlugin {
[ERROR] @teams/app.HttpPlugin "type": "missing",
[ERROR] @teams/app.HttpPlugin "loc": [
[ERROR] @teams/app.HttpPlugin "event",
[ERROR] @teams/app.HttpPlugin "application/vnd.microsoft.meetingEnd",
[ERROR] @teams/app.HttpPlugin "value",
[ERROR] @teams/app.HttpPlugin "joinUrl"
[ERROR] @teams/app.HttpPlugin ],

SDK Version

2.0.0.a8

Python Version

Python 3.13.11

Additional Context

No response

[lilyydu]

Hi @Carter-Apas ,

Thank you for filing this! This is a known bug that we are working to update, we've changed it for C# here (microsoft/teams.net#198) and have it in PR for TS (microsoft/teams.ts#434). Python is up next :)