function deprecatedUpdateClientDBThreadStoreThreadInfos(
  state: AppState,
  migrationFunc: MixedRawThreadInfos => MixedRawThreadInfos,
  handleMigrationFailure?: AppState => AppState,
): AppState {
  // Get threads from SQLite `threads` table.
  const clientDBThreadInfos = commCoreModule.getAllThreadsSync();

  const operations = deprecatedCreateUpdateDBOpsForThreadStoreThreadInfos(
    clientDBThreadInfos,
    migrationFunc,
  );

  // Try processing `ClientDBThreadStoreOperation`s and log out if
  //    `processThreadStoreOperationsSync(...)` throws an exception.
  try {
    commCoreModule.processThreadStoreOperationsSync(operations);
  } catch (exception) {
    console.log(exception);
    if (handleMigrationFailure) {
      return handleMigrationFailure(state);
    }
    return ({ ...state, cookie: null }: any);
  }

  return state;
}