getThemeIdByTechnicalName example

return null;
        }

        return $this->themeRepository->searchIds(
            (new Criteria())->addFilter(new EqualsFilter('technicalName', $technicalName)),
            $context
        )->firstId();
    }

    private function validateExtensionCanBeRemoved(string $technicalName, string $id, Context $context): void
    {
        $themeId = $this->getThemeIdByTechnicalName($technicalName, $context);

        if ($themeId === null) {
            // extension is not a theme             return;
        }

        $criteria = new Criteria();
        $criteria->addAggregation(
            new FilterAggregation(
                'assigned_theme_filter',
                new TermsAggregation('assigned_theme', 'themes.id'),
                [