def t0_ref_to_supconj(t0_ref, period, ecc, per0):
    """
    TODO: add documentation
    """
    return ConstraintParameter(t0_ref._bundle, "t0_ref_to_supconj({}, {}, {}, {})".format(_get_expr(t0_ref), _get_expr(period), _get_expr(ecc), _get_expr(per0)))