@Override
                            public SingleSource<BluetoothGattCharacteristic> apply(RxBleDeviceServices rxBleDeviceServices) {
                                return rxBleDeviceServices.getCharacteristic(uuid);
                            }
Value used to disable notifications or indicatinos
mockrxandroidble/src/main/java/com/polidea/rxandroidble2/mockrxandroidble/RxBleConnectionMock.java