public function getTranslation(string $column, ?string $locale = null, ?string $default = null): ?string;  	public function updateTranslations(array $columns = []): self;  	public function defaultTranslationLocale(): string;  	public function isDefaultLocale(?string $locale = null): bool;  	public function scopeTranslationIncludes(Builder $query, ?string $lang = null): Builder; }