def METHOD_NAME(wc_obj, par):
    r"""Compute the new physics contribution to the two isospin amplitudes
    of the $K\to\pi\pi$ transition."""
    scale = config['renormalization scale']['kpipi']
    pref = 4 * par['GF'] / sqrt(2) * ckm.xi('t', 'ds')(par)  # 4GF/sqrt(2) Vts* Vtd
    me = Kpipi_matrixelements_NP(par, scale)
    wc = wc_obj.get_wc(sector='sd', scale=scale, par=par, eft='WET-3')
    A = {0: 0, 2: 0}
    for i in [0, 2]:
        for j, m in me[i].items():
            A[i] += -pref * m * complex(wc[j]).conjugate()  # conjugate!
    return A