Simple KSPEvent use

    class KSPEventTests : PartModule
    {
        [KSPField(guiActive = true, guiName = "Active")]
        public bool activated;

        [KSPEvent(guiActive = true, guiName = "Activate")]
        public void Activate()
        {
            activated = true;
            Events["Activate"].active = false;
            Events["Deactivate"].active = true;
        }

        [KSPEvent(guiActive = true, guiName = "Deactivate", active = false)]
        public void Deactivate()
        {
            activated = false;
            Events["Activate"].active = true;
            Events["Deactivate"].active = false;
        }
    }