code: func (s *Store) NodeCheck(nodeName string, checkID types.CheckID) (uint64, *structs.HealthCheck, error) {
  	tx := s.db.Txn(false)
  	defer tx.Abort()
  
  	return s.getNodeCheckTxn(tx, nodeName, checkID)
  }
docs: // NodeCheck is used to retrieve a specific check associated with the given
  // node.