How can I run incognito Chrome browser in Robotframework?

Hello Guys!
I have a little question:
I’ve tried to run incognito window in chrome browser, but doesn’t work.
Here is the code:
Open Chrome Browser
${options}= Evaluate sys.modules[‘selenium.webdriver’].ChromeOptions() sys, selenium.webdriver
Call Method ${options} add_argument incognito
Create WebDriver Chrome chrome_options=${options}
Go To
Screenshot InkognitoBrowser.png
After run, I’ve recieved this error message:

How can I run test case in incognito window?