
  TYPE
    amt$record_header = record
      header_type: amt$record_header_type,
      length: amt$max_record_length,
      previous_length: amt$max_record_length,
      unused_bit_count: amt$unused_bit_count,
      user_information: cell,
    recend;

*copyc amt$max_record_length
*copyc amt$record_header_type
*copyc amt$unused_bit_count

