Constant fluvio_dataplane_protocol::batch::BATCH_HEADER_SIZE

pub const BATCH_HEADER_SIZE: usize = size_of::<i32>()     // partition leader epoch
        + size_of::<u8>()       // magic
        + size_of::<i32>()      //crc
        + size_of::<i16>()      // i16
        + size_of::<i32>()      // last offset delta
        + size_of::<i64>()      // first_timestamp
        + size_of::<i64>()      // max_time_stamp
        + size_of::<i64>()      //producer id
        + size_of::<i16>()      // produce_epoch
        + size_of::<i32>(); // 0x0_000_000_000_000_02dusize