code: func (c *Callbacks) OnCDOTAUserMsg_CourierKilledAlert(fn func(*dota.CDOTAUserMsg_CourierKilledAlert) error) {
  	c.onCDOTAUserMsg_CourierKilledAlert = append(c.onCDOTAUserMsg_CourierKilledAlert, fn)
  }
docs: // OnCDOTAUserMsg_CourierKilledAlert registers a callback for EDotaUserMessages_DOTA_UM_CourierKilledAlert