code: func (c *Callbacks) OnCDOTAUserMsg_CreateLinearProjectile(fn func(*dota.CDOTAUserMsg_CreateLinearProjectile) error) {
  	c.onCDOTAUserMsg_CreateLinearProjectile = append(c.onCDOTAUserMsg_CreateLinearProjectile, fn)
  }
docs: // OnCDOTAUserMsg_CreateLinearProjectile registers a callback for EDotaUserMessages_DOTA_UM_CreateLinearProjectile