code: func (c *Callbacks) OnCMsgSosStartSoundEvent(fn func(*dota.CMsgSosStartSoundEvent) error) {
  	c.onCMsgSosStartSoundEvent = append(c.onCMsgSosStartSoundEvent, fn)
  }
docs: // OnCMsgSosStartSoundEvent registers a callback for EBaseGameEvents_GE_SosStartSoundEvent