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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def isxmap(xmethod, opt):
 """Return ``isxmap`` argument for ``.IterStatsConfig`` initialiser. """


    if xmethod == 'admm':
        isx = {'XPrRsdl': 'PrimalRsdl', 'XDlRsdl': 'DualRsdl',
               'XRho': 'Rho'}
    else:
        isx = {'X_F_Btrack': 'F_Btrack', 'X_Q_Btrack': 'Q_Btrack',
               'X_ItBt': 'IterBTrack', 'X_L': 'L', 'X_Rsdl': 'Rsdl'}
    if not opt['AccurateDFid']:
        isx.update(evlmap(True))
    return isx