code: func (c *Callbacks) OnCDOTAUserMsg_SwapVerify(fn func(*dota.CDOTAUserMsg_SwapVerify) error) {
  	c.onCDOTAUserMsg_SwapVerify = append(c.onCDOTAUserMsg_SwapVerify, fn)
  }
docs: // OnCDOTAUserMsg_SwapVerify registers a callback for EDotaUserMessages_DOTA_UM_SwapVerify