public void highlightImportsInsideGuards() {
    HashSet<PyImportedNameDefiner> usedImportsInsideImportGuards = Sets.newHashSet(getImportsInsideGuard());
    usedImportsInsideImportGuards.retainAll(getUsedImports());

    for (PyImportedNameDefiner definer : usedImportsInsideImportGuards) {

      PyImportElement importElement = PyUtil.as(definer, PyImportElement.class);
      if (importElement == null) {
        continue;
      }
      final PyTargetExpression asElement = importElement.getAsNameElement();
      final PyElement toHighlight = asElement != null ? asElement : importElement.getImportReferenceExpression();
      registerProblem(toHighlight,
                      PyPsiBundle.message("INSP.try.except.import.error",
                                          importElement.getVisibleName()),
                      ProblemHighlightType.LIKE_UNKNOWN_SYMBOL);
    }
  }
public void highlightImportsInsideGuards()