extern list_t *new_closure(closure_t *cl);
extern void add_closure(dict_t *dict, cstring_t name, apply_fn apply);
extern void *find_cl_if(dict_t *dict, cstring_t name, uint32_t type,
extern list_t *new_closure(closure_t *cl);
extern void add_closure(dict_t *dict, cstring_t name, apply_fn apply);
extern void *find_cl_if(dict_t *dict, cstring_t name, uint32_t type,