<?php
 namespace LingoWP\Shared\Source; final class TranslatableTermMetaKeys { private function __construct() {} public static function keys(): array { $keys = function_exists('apply_filters') ? apply_filters('lingowp_translatable_term_meta_keys', []) : []; return array_values(array_filter( array_map('strval', is_array($keys) ? $keys : []), static fn(string $key): bool => $key !== '' )); } } 