cv.sisVIVE              Computes K-fold cross validation for selecting
                        lambda
predict.sisVIVE         Estimates set of invalid instruments or the
                        causal effect of exposure on outcome from a
                        sisVIVE object
sisVIVE                 Some Invalid Some Valid Instrumental Variables
                        Estimator
summary.sisVIVE         A summary of the sisVIVE object
