code: func (c *Callbacks) OnCDOTAUserMsg_TE_DestroyProjectile(fn func(*dota.CDOTAUserMsg_TE_DestroyProjectile) error) {
  	c.onCDOTAUserMsg_TE_DestroyProjectile = append(c.onCDOTAUserMsg_TE_DestroyProjectile, fn)
  }
docs: // OnCDOTAUserMsg_TE_DestroyProjectile registers a callback for EDotaUserMessages_DOTA_UM_TE_DestroyProjectile