Seeing many calls to /parse/functions/userNotLoggedIn

I’m in the process of debugging our Parse server running on Heroku, and I’m seeing a lot of requests like this (using BetterStack):

“path”:"/parse/functions/userNotLoggedIn"

I have searched in my cloud code and online, and I cannot find what that function anywhere. Does anyone know something about this endpoint, what it does, and why I would be seeing it so often?