def parse.input.first
import mylsm-lsm-store@0.6.0.1/src/Manifest.bend as Manifestimport Base
import bend-kit-bytes@0.3.2.0/bytes.bend as Bytes
579def parse.input.first(source: Bytes.Bytes, pair: Bytes.Cursor & Maybe<&2, U32>) -> Maybe<&2, Manifest>:
580 match pair:
581 case (_, None{}):
582 None{}
583 case (cursor, Some{first}):
584 parse.input.first.valid(source, cursor, U32.is_eq(first, 1297697875))