handle_update: Handle an update
Description
This method is called if it was determined that an update should indeed
be handled by this instance. It should also be overridden (see
Handler).
Usage
handle_update(update, dispatcher)
Arguments
- update
The update to be handled.
- dispatcher
The dispatcher to collect optional arguments.
Details
In most cases self$callback(dispatcher$bot, update) can be called,
possibly along with optional arguments.