static Pair<Concepts, AutoCloseable> persistentConcepts(S dbProgramID, S caseID) {
  Concepts cc = newConceptsWithClassFinder(dbProgramID + (nempty(caseID) ? "/" + caseID : ""));
  S botName = botNameForConcepts(cc);
  try {
    ensureDBNotRunning(botName);
  } on fail {
    cc.dontSave = true; // SAFETY
  }
  
  cc.persist();
  ret pair(cc, combineAutoCloseables(cc,
    methodsBot2(botName, cc, db_standardExposedMethods(), cc.lock)));
}