use crate::TagRef; mod decode; ///pub mod write; ///pub mod ref_iter; impl<'a> TagRef<'a> {    /// Deserialize a tag from `data`.    pub fn from_bytes(data: &'a [u8]) -> Result<TagRef<'a>, crate::decode::Error> {        decode::git_tag(data)            .map(|(_, t)| t)            .map_err(crate::decode::Error::from)    }    /// The object this tag points to as `Id`.    pub fn target(&self) -> git_hash::ObjectId {        git_hash::ObjectId::from_hex(self.target).expect("prior validation")    }}