userInitAd function
Implementation
void userInitAd(String appsbm, String installsmb) async {
AdjustConfig explicitHeadJelly =
AdjustConfig(appsbm, AdjustEnvironment.production);
explicitHeadJelly.logLevel = AdjustLogLevel.verbose;
explicitHeadJelly.isSendingInBackgroundEnabled = true;
explicitHeadJelly.attributionCallback = (_) {
Adjust.trackEvent(AdjustEvent(installsmb));
};
Adjust.initSdk(explicitHeadJelly);
}