def model params_BG as
    def import using "./units.cellml" for
        unit J_per_K_mol using unit J_per_K_mol;
        unit fmol_per_s using unit fmol_per_s;
        unit fmol using unit fmol;
        unit per_fmol using unit per_fmol;
    enddef;
    def comp params_BG as
        var R: J_per_K_mol{ init: 8.31, pub: out};
        var T: kelvin{ init: 293, pub: out};
        var K_Ai: per_fmol{ init: 1, pub: out};
        var q_init_Ai: fmol{ init: 1, pub: out};
        var K_Ao: per_fmol{ init: 1, pub: out};
        var q_init_Ao: fmol{ init: 1, pub: out};
        var K_1: per_fmol{ init: 1, pub: out};
        var q_init_1: fmol{ init: 1, pub: out};
        var K_2: per_fmol{ init: 1, pub: out};
        var q_init_2: fmol{ init: 1, pub: out};
        var K_3: per_fmol{ init: 1, pub: out};
        var q_init_3: fmol{ init: 1, pub: out};
        var K_4: per_fmol{ init: 1, pub: out};
        var q_init_4: fmol{ init: 1, pub: out};
        var kappa_r1: fmol_per_s{ init: 1, pub: out};
        var kappa_r2: fmol_per_s{ init: 1, pub: out};
        var kappa_r3: fmol_per_s{ init: 1, pub: out};
        var kappa_r4: fmol_per_s{ init: 1, pub: out};
    enddef;
enddef;