* Write the given notes_tree structure to the object database
*
* Creates a new tree object encapsulating the current state of the given
- * notes_tree, and stores its SHA1 into the 'result' argument.
+ * notes_tree, and stores its object id into the 'result' argument.
*
* Returns zero on success, non-zero on failure.
*
* this function has returned zero. Please also remember to create a
* corresponding commit object, and update the appropriate notes ref.
*/
-int write_notes_tree(struct notes_tree *t, unsigned char *result);
+int write_notes_tree(struct notes_tree *t, struct object_id *result);
/* Flags controlling the operation of prune */
#define NOTES_PRUNE_VERBOSE 1