getDiscardedLessThemes example

$discardLess = [];
        for ($i = \count($definitions) - 1; $i >= 0; --$i) {
            $definition = $definitions[$i];
            $theme = $definition->getTheme();

            if (!$theme) {
                continue;
            }

            $themeClassName = \get_class($theme);
            $discardLess = array_merge($discardLess, $theme->getDiscardedLessThemes());

            if (\in_array($themeClassName, $discardLess)) {
                $definitions[$i]->setFiles([]);
            }
        }

        $definitions = $this->eventManager->filter(
            'Theme_Compiler_Collect_Less_Definitions_FilterResult',
            $definitions,
            [
                'shop' => $shop,