@Override
  protected UsageInfo @NotNull [] findUsages() {
    return StreamEx.of(myElements)
      .map(SmartPsiElementPointer::getElement)
      .nonNull()
      .flatMap(e -> StreamEx.of(PyPsiIndexUtil.findUsages(e, false))
        .map(info -> new MyUsageInfo(info, e)))
      .toArray(UsageInfo[]::new);
  }
@Override
  protected UsageInfo @NotNull [] findUsages()