def magic.matches
import mylsm-lsm-store@0.6.0.1/src/coordinator/OptionsCodec.bend as OptionsCodecimport Base
import bend-kit-bytes@0.3.2.0/bytes.bend as Bytes
179def magic.matches(pair: Bytes.Bytes & Bytes.Bytes) -> Decision:
180 match pair:
181 case (magic_source, retained):
182 magic.checked(retained, magic.candidate(Bytes.slice(magic_source, 0, 4)))