protected function decodeData($authority, ?\SAML2\XML\saml\NameID $nameID, array $attributes): SSOAccountInfo
{
	$info = new SSOAccountInfo('uniname', $cn);

	...
	
	// eduPersonScopedAffiliation
	if (
		array_key_exists('eduPersonScopedAffiliation', $attributes) &&
		is_array($attributes['eduPersonScopedAffiliation']) &&
		in_array('staff@example.com', $attributes['eduPersonScopedAffiliation'])
	) {
		$info->addFeature(Account::FEATURE_UPLOAD_MEDIA);
		$info->addFeature(Account::FEATURE_MAILS);
	}
	
	...
}