@NotNull
  FileBasedIndex.InputFilter getInputFilter(@NotNull ID<?, ?> indexId) {
    assert myFreezed;
    final Pair<UpdatableIndex<?, ?, FileContent, ?>, FileBasedIndex.InputFilter> pair = myIndices.get(indexId.getUniqueId());

    assert pair != null : "Index data is absent for index " + indexId;

    return pair.getSecond();
  }
@NotNull
  FileBasedIndex.InputFilter getInputFilter(@NotNull ID<?, ?> indexId)