What kind of feature are you missing? Where do you notice a shortcoming of PTB?

There is currently no filter defined by us which simply checks if message contains a bot mention, so @botusername message.

Describe the solution you'd like

Make a new filter which checks if a message contains the mention of a bot. So first check if the message has the telegram.constants.MessageEntityType.MENTION, and then check if the username is the one of the bot

Describe alternatives you've considered

One can do this filter by themselves, but providing one would be nice

Additional context

Maybe having the only_start parameter here would be nice, same as with the command filter.

Assignees:

Current assignee: @ElmurodovJavohir - #3857. If they don't commit/reply by Oct 7th, the next in line to tackle this issue is:

- @Prathmesh-rajurkar
- @AbhigyanBaruah

Issue is being tackled by dev team due to the continued inactivity from the contributors.