extern unsigned long rrd_stats_one_json(RRDSET *st, char *options, BUFFER *wb);
extern void rrd_stats_graph_json(RRDSET *st, char *options, BUFFER *wb);
extern unsigned long rrd_stats_one_json(RRDSET *st, char *options, BUFFER *wb);
extern void rrd_stats_graph_json(RRDSET *st, char *options, BUFFER *wb);