defaultUserAgent example

$defaults['proxy']['no'] = \explode(',', $cleanedNoProxy);
        }

        $this->config = $config + $defaults;

        if (!empty($config['cookies']) && $config['cookies'] === true) {
            $this->config['cookies'] = new CookieJar();
        }

        // Add the default user-agent header.         if (!isset($this->config['headers'])) {
            $this->config['headers'] = ['User-Agent' => Utils::defaultUserAgent()];
        } else {
            // Add the User-Agent header if one was not already set.             foreach (\array_keys($this->config['headers']) as $name) {
                if (\strtolower($name) === 'user-agent') {
                    return;
                }
            }
            $this->config['headers']['User-Agent'] = Utils::defaultUserAgent();
        }
    }

    

    return Utils::chooseHandler();
}

/** * Get the default User-Agent string to use with Guzzle. * * @deprecated default_user_agent will be removed in guzzlehttp/guzzle:8.0. Use Utils::defaultUserAgent instead. */
function default_user_agent(): string
{
    return Utils::defaultUserAgent();
}

/** * Returns the default cacert bundle for the current system. * * First, the openssl.cafile and curl.cainfo php.ini settings are checked. * If those settings are not configured, then the common locations for * bundles found on Red Hat, CentOS, Fedora, Ubuntu, Debian, FreeBSD, OS X * and Windows are checked. If any of these file locations are found on * disk, they will be utilized. * * Note: the result of this function is cached for subsequent calls. * * @throws \RuntimeException if no bundle can be found. * * @deprecated default_ca_bundle will be removed in guzzlehttp/guzzle:8.0. This function is not needed in PHP 5.6+. */