Function gamp_awgn_mix 

fn gamp_awgn_mix(
    dip: &mut DipoleOp,
    plan: &WaveletPlan,
    cfg: &GampCfg,
    st: &mut GampState,
    mix: &mut MixState,
    lambda: &mut f64,
    der_1st: &[Complex64],
    weight_vect: &[f64],
    y: &[Complex64],
    wave_mask: &[bool],
)

One GAMP call with Gaussian-mixture noise (final stage).