@Provides
    @Named(GATT_MTU_MINIMUM)
    static int minimumMtu() {
        return RxBleConnection.GATT_MTU_MINIMUM;
    }
{@see https://issuetracker.google.com/issues/307234027}
rxandroidble/src/main/java/com/polidea/rxandroidble2/internal/connection/ConnectionModule.java