verse code not working

Development Getting Started & Setup
, ,
1

using { /Fortnite.com/Devices }
using { /Verse.org/Simulation }
using { /UnrealEngine.com/Temporary/Diagnostics }

DamageMultipliedBy := class(creative_device):

@editable

Damage_Multiplier:int = 0

	     # Array of references to the Barrier devices in the level.
         @editable
         DamageMultiplier:[]damage_amplifier_powerup_device = array{}

it doesn’t works.
all i want is to set this damage multiplier over the limit of the default 4x…so whenever it gets picked up it picks it up with the modified damage.