def METHOD_NAME(self, emupars, sigma8tot):
    """Use baccoemu to convert sigma8 total matter to sigma8 cdm+baryons
    """
    if hasattr(emupars['omega_cold'], '__len__'):
        _emupars = {}
        for pname in emupars:
            _emupars[pname] = emupars[pname][0]
    else:
        _emupars = emupars
    A_s_fid = 2.1e-9
    sigma8tot_fid = self.mpk.get_sigma8(cold=False, A_s=A_s_fid,
                                        **_emupars)
    A_s = (sigma8tot / sigma8tot_fid)**2 * A_s_fid
    return self.mpk.get_sigma8(cold=True, A_s=A_s, **_emupars)