public function cancel()
    {
        $path = sprintf('/%s/%s/%s/%s', MoipResource::VERSION, self::PATH, $this->getId(), 'void');
        if ($this->isMultipayment($this->getId())) {
            $path = sprintf('/%s/%s/%s/%s', MoipResource::VERSION, self::MULTI_PAYMENTS_PATH, $this->getId(), 'void');