{"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"impl<'a>"}]}
impl<'a> Decodable<MemDecoder<'a>> for Vec<u8> {
// since the default implementations call `decode` to produce a `Vec<u8>` internally.
    fn decode(d: &mut MemDecoder<'a>) -> Self {