public function has(string $key, ?string $language = null): bool
	{
		[$file, $string] = $this->parseKey($key);

		if($string === null)
		{
			return false;
		}

		$strings = $this->getStrings($language ?? $this->language, $file);

		return Arr::has($strings, $string) && is_string(Arr::get($strings, $string));
	}