@Nullable
  private static PsiElement getControlFlowAnchorForString(@NotNull PyStringLiteralExpression host) {
    final PsiElement comprehensionPart = PsiTreeUtil.findFirstParent(host, element -> {
      // Any comprehension component and its result are represented as children expressions of the comprehension element.
      // Only they have respective nodes in CFG and thus can be used as anchors
      return element instanceof PyExpression && element.getParent() instanceof PyComprehensionElement;
    });
    if (comprehensionPart != null) {
      return comprehensionPart;
    }
    return PsiTreeUtil.getParentOfType(host, PyStatement.class);
  }
@Nullable
  private static PsiElement getControlFlowAnchorForString(@NotNull PyStringLiteralExpression host)