:- initialization( logtalk_load([ datep, date, % dates timep, time, event_handlersp, % events event_registryp, event_registry, before_event_registry, after_event_registry, monitorp, monitor, debuggerp, % debugging debugger, subject, % dependents observer, hierarchyp, % hierarchies proto_hierarchyp, proto_hierarchy, class_hierarchyp, class_hierarchy, metap, meta, % metapredicates loopp, loop, randomp, % random random, termp, term, % types atomic, atom, callable, characterp, character, number, float, integer, natural, compound, listp, list, difflist, numberlistp, numberlist, varlist, queuep, queue, dictionaryp, bintree, setp, set, comparingp])).