private IndexUpdateRunner.@NotNull FileSet getExplicitlyRequestedFilesSets(@NotNull Function0<@NotNull Boolean> pauseCondition) {
    return new IndexUpdateRunner.FileSet(myProject, "<indexing queue>", files, pauseCondition);
  }
private IndexUpdateRunner.@NotNull FileSet getExplicitlyRequestedFilesSets(@NotNull Function0<@NotNull Boolean> pauseCondition)