code: func (c *Callbacks) OnCMsgClearEntityDecalsEvent(fn func(*dota.CMsgClearEntityDecalsEvent) error) {
  	c.onCMsgClearEntityDecalsEvent = append(c.onCMsgClearEntityDecalsEvent, fn)
  }
docs: // OnCMsgClearEntityDecalsEvent registers a callback for EBaseGameEvents_GE_ClearEntityDecalsEvent