docs: public boolean waitForFragment(String tag, int id, int timeout){
  		long endTime = SystemClock.uptimeMillis() + timeout;
  		while (SystemClock.uptimeMillis() <= endTime) {
  
  			if(getSupportFragment(tag, id) != null)
  				return true;
  
  			if(getFragment(tag, id) != null)
  				return true;
  		}
  		return false;
  	}