System.setProperty("webdriver.chrome.driver", Base_Page.getConstant(Constant.CHROME_DRIVER_DIRECTORY));
DesiredCapabilities capabilities = DesiredCapabilities.chrome();
ChromeOptions options = new ChromeOptions();
options.addArguments("test-type");
capabilities.setCapability("chrome.binary", "<Path to binary>");
capabilities.setCapability(ChromeOptions.CAPABILITY, options);
webdriver = new ChromeDriver(capabilities);

if chrome_options is None:
        # desired_capabilities stays as passed in
        if desired_capabilities is None:
            desired_capabilities = self.create_options().to_capabilities()
    else:
        if desired_capabilities is None:
            desired_capabilities = chrome_options.to_capabilities()
        else:
            desired_capabilities.update(chrome_options.to_capabilities())