def METHOD_NAME(smoothed=True):
    mapper = {
        "X_spliced": "M_s" if smoothed else "X_spliced",
        "X_unspliced": "M_u" if smoothed else "X_unspliced",
        "X_new": "M_n" if smoothed else "X_new",
        "X_old": "M_o" if smoothed else "X_old",
        "X_total": "M_t" if smoothed else "X_total",
        # "X_uu": "M_uu" if smoothed else "X_uu",
        # "X_ul": "M_ul" if smoothed else "X_ul",
        # "X_su": "M_su" if smoothed else "X_su",
        # "X_sl": "M_sl" if smoothed else "X_sl",
        # "X_protein": "M_p" if smoothed else "X_protein",
        "X": "X" if smoothed else "X",
    }
    return mapper