struct afb_arg (*get)(void *closure, const char *name);
void (*success)(void *closure, struct json_object *obj, const char *info);
void (*fail)(void *closure, const char *status, const char *info);
struct afb_arg (*get)(void *closure, const char *name);
void (*success)(void *closure, struct json_object *obj, const char *info);
void (*fail)(void *closure, const char *status, const char *info);