code: func (c *Callbacks) OnCDOTAUserMsg_GlobalLightDirection(fn func(*dota.CDOTAUserMsg_GlobalLightDirection) error) {
  	c.onCDOTAUserMsg_GlobalLightDirection = append(c.onCDOTAUserMsg_GlobalLightDirection, fn)
  }
docs: // OnCDOTAUserMsg_GlobalLightDirection registers a callback for EDotaUserMessages_DOTA_UM_GlobalLightDirection