Make.StatSourcetype files_layer = {flip : [ `Upper1 | `Upper0 ] option;lower : Layer_stat.files;upper1 : Layer_stat.files;upper0 : Layer_stat.files;}type objects_layer = {lower : Layer_stat.objects;upper1 : Layer_stat.objects;upper0 : Layer_stat.objects;}type t = {hash_size : Layer_stat.size;log_size : int;files : files_layer;objects : objects_layer;}