code: func (c *Callbacks) OnCDOTAUserMsg_ReplaceQueryUnit(fn func(*dota.CDOTAUserMsg_ReplaceQueryUnit) error) {
  	c.onCDOTAUserMsg_ReplaceQueryUnit = append(c.onCDOTAUserMsg_ReplaceQueryUnit, fn)
  }
docs: // OnCDOTAUserMsg_ReplaceQueryUnit registers a callback for EDotaUserMessages_DOTA_UM_ReplaceQueryUnit