public Builder addService(@NonNull UUID uuid, @NonNull List<BluetoothGattCharacteristic> characteristics) {
            BluetoothGattService bluetoothGattService = new BluetoothGattService(uuid, 0);
            for (BluetoothGattCharacteristic characteristic : characteristics) {
                bluetoothGattService.addCharacteristic(characteristic);
            }
            rxBleDeviceServices.getBluetoothGattServices().add(bluetoothGattService);
            return this;
        }
Add a {@link BluetoothGattService} to the device. Calling this method is not required.

@param uuid            service UUID
@param characteristics characteristics that the service should report. Use {@link RxBleClientMock.CharacteristicsBuilder} to
                       create them.
mockrxandroidble/src/main/java/com/polidea/rxandroidble2/mockrxandroidble/RxBleConnectionMock.java