GR_GENE_MODEL           germline small variant object
GR_GERM_SMALL_VARS      germline small variant object
GR_SCNA                 copynumber object
GR_SOM_SMALL_VARS       somatic small variant object
aff_germ_copies         calculates how many copies are affected by a
                        germnline small variant
aff_som_copies          calculates how many copies are affected by a
                        somatic small variant
predict_zygosity        predicts zygosity of a set of genes of a sample
