Await for more than one signal ?

[tebz]

It already exists one
#6243

Is there a easy way to AWAIT for more than one signal ?
Something like:
_ var b = await %Button1.button_up | %Button2.button_up
_ print("button_up " + str(b) )
in stead of:
_ var b = await b1_or_b2
_ print("button_up " + str(b) )
_
func _on_button_1_button_up():
_ emit_signal("b1_or_b2", button.b1)
_
func _on_button_2_button_up():
_ emit_signal("b1_or_b2", button.b2)

[AThousandShips]

Already tracked by #6243

[dalexeev]

Let's close for consolidation, since there is already a proposal. Thanks for the contribution nonetheless!