code: func (c *Callbacks) OnCDOTAUserMsg_NevermoreRequiem(fn func(*dota.CDOTAUserMsg_NevermoreRequiem) error) {
  	c.onCDOTAUserMsg_NevermoreRequiem = append(c.onCDOTAUserMsg_NevermoreRequiem, fn)
  }
docs: // OnCDOTAUserMsg_NevermoreRequiem registers a callback for EDotaUserMessages_DOTA_UM_NevermoreRequiem