void count(T, T, const U &,...)
void(* print_target)(const struct target_opts *options)
void(* set_progress)(int time)
void(* print_status)(const struct target_status *status)
void(* print_footer)(int count, const struct target_status *status)
void(* set_header)(const char *format)
void set_output_format(enum OutputFmt format)
void(* print_header)(const char *const argv[])
enum ProcessStatus status