protected function buildRequest(string $method, string $url, array $options = []): array
    {
        if ($this->forcedAcceptJson) {
            $this->headers['accept'] = 'application/json';
        }
        if (count($this->headers) > 0) {
            if (!array_key_exists(RequestOptions::HEADERS, $options) || !is_array($options[RequestOptions::HEADERS])) {
                $options[RequestOptions::HEADERS] = [];
            }
            foreach ($this->headers as $headerName => $headerValue) {
                $options[RequestOptions::HEADERS][$headerName] = $headerValue;
            }
        }

        $options = $this->addAuthHeader($options);

        return [
            self::OPTION_METHOD => $method,
            self::OPTION_URL => $this->buildUrl($url),
            self::OPTION_OPTIONS => $options
        ];
    }