code: func (c *Callbacks) OnCDOTAUserMsg_KillcamDamageTaken(fn func(*dota.CDOTAUserMsg_KillcamDamageTaken) error) {
  	c.onCDOTAUserMsg_KillcamDamageTaken = append(c.onCDOTAUserMsg_KillcamDamageTaken, fn)
  }
docs: // OnCDOTAUserMsg_KillcamDamageTaken registers a callback for EDotaUserMessages_DOTA_UM_KillcamDamageTaken