mod find {    use std::convert::TryInto;     use git_ref as refs;    use git_testtools::hex_to_id;     fn repo() -> crate::Result<git_repository::Repository> {        crate::repo("make_references_repo.sh").map(Into::into)    }     #[test]    fn and_peel() -> crate::Result {        let repo = repo()?;        let mut packed_tag_ref = repo.try_find_reference("dt1")?.expect("tag to exist");        assert_eq!(packed_tag_ref.name(), "refs/tags/dt1".try_into()?);         assert_eq!(            packed_tag_ref.inner.target,            refs::Target::Peeled(hex_to_id("4c3f4cce493d7beb45012e478021b5f65295e5a3")),            "it points to a tag object"        );         let object = packed_tag_ref.peel_to_id_in_place()?;        let the_commit = hex_to_id("134385f6d781b7e97062102c6a483440bfda2a03");        assert_eq!(object, the_commit, "it is assumed to be fully peeled");        assert_eq!(            object,            packed_tag_ref.peel_to_id_in_place()?,            "peeling again yields the same object"        );         let mut symbolic_ref = repo.find_reference("multi-link-target1")?;        assert_eq!(symbolic_ref.name(), "refs/heads/multi-link-target1".try_into()?);        assert_eq!(symbolic_ref.peel_to_id_in_place()?, the_commit);        assert_eq!(            symbolic_ref.name(),            "refs/remotes/origin/multi-link-target3".try_into()?,            "it follows symbolic refs, too"        );        assert_eq!(symbolic_ref.into_fully_peeled_id()?, the_commit, "idempotency");        Ok(())    }}