fn append_message_lengths()

in src/batch.rs [72:77]


    fn append_message_lengths(&mut self, message_lengths: &Vec<usize>) {
        for (i, len) in message_lengths.iter().enumerate() {
            self.append_u64(b"", i as u64);
            self.append_u64(b"mlen", *len as u64);
        }
    }