code: func (c *Callbacks) OnCDOTAUserMsg_UpdateSharedContent(fn func(*dota.CDOTAUserMsg_UpdateSharedContent) error) {
  	c.onCDOTAUserMsg_UpdateSharedContent = append(c.onCDOTAUserMsg_UpdateSharedContent, fn)
  }
docs: // OnCDOTAUserMsg_UpdateSharedContent registers a callback for EDotaUserMessages_DOTA_UM_UpdateSharedContent