SmscUa::register

public function register(array $fields)
{
	$login = (string)$fields['login'];
	$psw = (string)$fields['psw'];

	$result = $this->sendApiRequest(
		'balance',
		[
			'login' => $login,
			'psw' => $psw,
		]
	);

	if ($result->isSuccess())
	{
		$this->setOption('login', $login);
		$this->setOption('psw', $psw);
	}

	return $result;
}