How to disable ad personalization as boolean using on iOS using GOOGLE ANALYTICS DEFAULT ALLOW AD PERSONALIZATION SIGNALS

Question

The documentation says:

To set the default personalized advertising behavior, set the value of GOOGLE_ANALYTICS_DEFAULT_ALLOW_AD_PERSONALIZATION_SIGNALS to NO (Boolean) in your app's Info.plist file.

I am confused. No is not a boolean.

Should I set it like this:

<key>GOOGLE_ANALYTICS_DEFAULT_ALLOW_AD_PERSONALIZATION_SIGNALS</key>
<string>NO</string>

or

<key>GOOGLE_ANALYTICS_DEFAULT_ALLOW_AD_PERSONALIZATION_SIGNALS</key>
<false/>

?