def parse.multi.header.level
import mylsm-lsm-store@0.6.0.1/src/ByteSstFile.bend as ByteSstFileimport Base
import bend-kit-bytes@0.3.2.0/bytes.bend as Bytes
1487def parse.multi.header.level(
1488 pair: Bytes.Bytes & Maybe<&2, U32>
1489) -> Result<&1, &1, Error, MultiHeader>:
1490 match pair:
1491 case (file, Some{level}):
1492 parse.multi.header.total(Bytes.get.u32be(file, 12), U32.to_nat(level))
1493 case _:
1494 Fail{Malformed{}}