(self, *, event_message: EventMessage, client: "BusClient")
Called once an incoming event call is received, but before its handler is executed

        `event_message` is mutable and may therefore be changed prior to being passed to the
        handling code.
Called once an incoming event call is received, but before its handler is executed
Called once an incoming event call is received but before its handler is executed
async def before_event_execution(self, *, event_message: EventMessage, client: "BusClient"):
        """Called once an incoming event call is received, but before its handler is executed

        `event_message` is mutable and may therefore be changed prior to being passed to the
        handling code.
        """
        pass
async def before_event_execution ( self , * , event_message : EventMessage , client : "BusClient" ) : pass