Missing Method PinHelper.hasDefaultPinSaved#

[sysnoobsci]

The method in PinHelper:

public static boolean hasDefaultPinSaved(Context c) {
return getDefaultSharedPreferences(c).getString(KEY_PINPUT_PIN_HASH, null) != null;
}

Is not in the actual library when I pull it via Gradle. The method is undefined when I attempt to use it.