R/summarize_extract.R
    logLik.cmp.RdAn accessor function used to extract the (maximized) log-likelihood from a 'cmp' object.
an object of class 'cmp' object, obtained from a call to glm.cmp
other arguments passed to or from other methods (currently unused).
an object of class 'logLik.cmp', obtained from a call to logLik.cmp.