/* opaque */
struct git_istream;
-struct git_istream *open_istream(const struct object_id *, enum object_type *, unsigned long *, struct stream_filter *);
+struct git_istream *open_istream(struct repository *, const struct object_id *,
+ enum object_type *, unsigned long *,
+ struct stream_filter *);
int close_istream(struct git_istream *);
ssize_t read_istream(struct git_istream *, void *, size_t);