public function enqueueSemanticUiLibs(string $which = 'all')
    {
        if (($data = $this->didEnqueueLibs(__METHOD__))) {
            return $data; // Did this already.
        } // We only need to enqueue once.

        if ($which === 'all' || $which === 'styles') {
            $data['styles'] = $this->enqueueSemanticUiStyles();
        }
        if ($which === 'all' || $which === 'scripts') {
            $data['scripts'] = $this->enqueueSemanticUiScripts();
        }
        return $data = $data ?? [];
    }