You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: molar_flux.rs
    path of file: ./repos/uom/src/si
    
    the code of the file until where you have to start completion: //! Molar flux (base unit mole per square meter second, m⁻² · s⁻¹ · mol).

quantity! {
    /// Molar flux (base unit mole per square meter second, m⁻² · s⁻¹ · mol).
    quantity: MolarFlux; "molar flux";
    /// Dimension of molar flux, L⁻²T⁻¹N (base unit mole per square meter second, m⁻² · s⁻¹ · mol).
    dim
    
        fn check_units() {
            test::<aos::mole, t::second, area::square_meter, mf::mole_per_square_meter_second>();

            fn test<N: aos::Conversion<V>, T: t::Conversion<V>, A: area::Conversion<V>, R: mf::Conversion<V>>() {
                Test::assert_approx_eq(&MolarFlux::new::<R>(V::one()),
                    &(AmountOfSubstance::new::<N>(V::one())
                        / Time::new::<T>(V::one())
                        / Area::new::<A>(V::one())));
            }
        }