typedef void alternate_ref_fn(const struct ref *, void *);
extern void for_each_alternate_ref(alternate_ref_fn, void *);
+struct send_pack_args;
+extern int send_pack(struct send_pack_args *args,
+ int fd[], struct child_process *conn,
+ struct ref *remote_refs,
+ struct extra_have_objects *extra_have);
#endif