Is there app-level opt out flag for Google Tag Manager to be set in an iOS app?

Question

I know that app-level opt out flag will disable or re-enable Google Analytics across the entire app. Based on the reference: https://developers.google.com/analytics/devguides/collection/ios/v2/advanced#sampling

// Set the app-level opt out preference.

[[GAI sharedInstance].setOptOut = YES];

Is there any way to set this flag for Google Tag Manager as well? to filter or control the session tracking?