APPWRITE_FUNCTION_EVENT_DATA KEY ERROR

After migrating to 1.4.2 instance my old deployed functions no longer work on "event" execution.

TL;DR

The user is experiencing a key error with `APPWRITE_FUNCTION_EVENT_DATA` after migrating to Appwrite 1.4.2 instance. They mention that the Python SDK is not updated to version 4.0.0 and this issue is happening in the Python 3.10 runtime. There is a link to a GitHub issue for more details. However, the user is asked to create a new GitHub issue for this problem. No solution is provided in the thread.

basically in variables APPWRITE_FUNCTION_EVENT_DATA is not found