Restore.header.version: def of mylsm-lsm-store@0.6.0.1
Import: import mylsm-lsm-store@0.6.0.1/src/transfer/Restore.bend as Restore
Lines 157-162 of mylsm-lsm-store@0.6.0.1/src/transfer/Restore.bend: https://jend.leeeet.dev/read.txt?path=mylsm-lsm-store@0.6.0.1/src/transfer/Restore.bend&start_line=157&end_line=162

import Base
import bend-kit-bytes@0.3.2.0/bytes.bend as Bytes

def header.version(pair: Bytes.Bytes & Maybe<&2, U32>) -> Result<&1, &1, Error, Header>:
  match pair:
    case (input, value):
      match value:
        case None{}: Fail{InvalidFormat{}}
        case Some{version}: header.version.checked(input, U32.is_eq(version, 1))

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_eq
  https://jend.leeeet.dev/definition.txt?path=bend-kit-bytes@0.3.3.0/bytes.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/transfer/Restore.bend&name=Error
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/transfer/Restore.bend&name=Header
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/transfer/Restore.bend&name=header.version.checked