use crate::{ext::ObjectIdExt, Tag}; impl<'repo> Tag<'repo> {    /// Decode this tag partially and return the id of its target.    pub fn target_id(&self) -> Result<crate::Id<'repo>, git_object::decode::Error> {        git_object::TagRefIter::from_bytes(&self.data)            .target_id()            .map(|id| id.attach(self.repo))    }     /// Decode this tag partially and return the tagger, if the field exists.    pub fn tagger(&self) -> Result<Option<git_actor::SignatureRef<'_>>, git_object::decode::Error> {        git_object::TagRefIter::from_bytes(&self.data).tagger()    }}