int use_local_rate) = 0;
virtual int64_t get_progress_max() = 0;
virtual void get_package_paths(ArrayList<char*> *path_list) = 0;
int use_local_rate) = 0;
virtual int64_t get_progress_max() = 0;
virtual void get_package_paths(ArrayList<char*> *path_list) = 0;