const
  BLOB_START_MARKER* = byte(0x80)
  LIST_START_MARKER* = byte(0xc0)

  THRESHOLD_LIST_LEN* = 56

  LEN_PREFIXED_BLOB_MARKER* = byte(BLOB_START_MARKER + THRESHOLD_LIST_LEN - 1) # 183
  LEN_PREFIXED_LIST_MARKER* = byte(LIST_START_MARKER + THRESHOLD_LIST_LEN - 1) # 247