private Observable<byte[]> observeOnCharacteristicChangeCallbacks(UUID characteristicUuid) {
        return characteristicNotificationSources.get(characteristicUuid);
    }
Value used to disable notifications or indicatinos
mockrxandroidble/src/main/java/com/polidea/rxandroidble2/mockrxandroidble/RxBleConnectionMock.java