How to get AIC, BIC for fitted lee carter in demography package in R? -

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i have trouble finding bic , aic values lee carter fitted using lca command in demography package, how fitted model:

uklcam<-lca(data=uk, series="male", years=1950:2011, max.age=100, adjust = "dxt", chooseperiod=false, scale = true, restype = "logrates", interpolate = false)

can help? bic() command give following errors

> bic(uklcam)  error in usemethod("loglik") :    no applicable method 'loglik' applied object of class "lca"


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