#include "command.h"
-extern int use_json(const int argc, struct cmd_token *argv[]);
+extern bool use_json(const int argc, struct cmd_token *argv[]);
extern void json_object_string_add(struct json_object *obj, const char *key,
const char *s);
extern void json_object_int_add(struct json_object *obj, const char *key,