void writer_init(void);
void *check_writer_arg_or_die(const char *wa, int *writer_num);
-void print_writer_helps(int detailed);
+void print_writer_helps(unsigned flags);
void register_writer_node(struct writer_node *wn, struct btr_node *parent,
struct sched *s);
void get_btr_sample_rate(struct btr_node *btrn, int32_t *result);