def METHOD_NAME():
    ccl.physical_constants.unfreeze()
    ccl.physical_constants.T_CMB = 2.7
    ccl.gsl_params.INTEGRATION_LIMBER_EPSREL = 1E-4
    ccl.gsl_params.INTEGRATION_EPSREL = 1E-4
    cosmo = ccl.Cosmology(Omega_c=0.30, Omega_b=0.00, Omega_g=0, Omega_k=0,
                          h=0.7, sigma8=0.8, n_s=0.96, Neff=0, m_nu=0.0,
                          w0=-1, wa=0, transfer_function='bbks',
                          matter_power_spectrum='linear')
    ccl.physical_constants.reload()
    ccl.gsl_params.reload()
    return cosmo