Disable Event Handlers when Updating a list Programatically

HandleEventFiring eventFiring = new HandleEventFiring();
eventFiring.AccDisableEventFiring();
listItem.Update();
eventFiring.AccEnableEventFiring();

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public class HandleEventFiring : SPItemEventReceiver
        {
            public void AccDisableEventFiring()
            {
                this.DisableEventFiring();
            }
            public void AccEnableEventFiring()
            {
                this.EnableEventFiring();
            }
        }