pub trait DecodeEntry {    fn put(&mut self, offset: u64, data: &[u8], kind: git_object::Kind, compressed_size: usize);    fn get(&mut self, offset: u64, out: &mut Vec<u8>) -> Option<(git_object::Kind, usize)>;} pub struct DecodeEntryNoop; impl DecodeEntry for DecodeEntryNoop {    fn put(&mut self, _offset: u64, _data: &[u8], _kind: git_object::Kind, _compressed_size: usize) {}    fn get(&mut self, _offset: u64, _out: &mut Vec<u8>) -> Option<(git_object::Kind, usize)> {        None    }} struct LRUEntry {    offset: u64,    data: Vec<u8>,    kind: git_object::Kind,    compressed_size: usize,} #[derive(Default)]pub struct DecodeEntryLRU(uluru::LRUCache<[uluru::Entry<LRUEntry>; 64]>); impl DecodeEntry for DecodeEntryLRU {    fn put(&mut self, offset: u64, data: &[u8], kind: git_object::Kind, compressed_size: usize) {        self.0.insert(LRUEntry {            offset,            data: Vec::from(data),            kind,            compressed_size,        })    }     fn get(&mut self, offset: u64, out: &mut Vec<u8>) -> Option<(git_object::Kind, usize)> {        self.0.lookup(|e: &mut LRUEntry| {            if e.offset == offset {                out.resize(e.data.len(), 0);                out.copy_from_slice(&e.data);                Some((e.kind, e.compressed_size))            } else {                None            }        })    }}