[nodriver] support add_experimental_option

[ghj1976]

Does nodriver not support add_experimental_option?

I'm looking to disable the save password dialog, and from what I've seen online, it requires the following settings:

options = webdriver.ChromeOptions()
prefs = {"":""}
prefs["credentials_enable_service"] = False
prefs["profile.password_manager_enabled"] = False
options.add_experimental_option("prefs", prefs)
driver = webdriver.Chrome(chrome_options=options)

However, I couldn't find how to set add_experimental_option with nodriver.