def decode_checked
import mylsm-lsm-store@0.6.0.1/src/StorageBytes.bend as StorageBytesimport Base
import bend-kit-bytes@0.3.2.0/bytes.bend as Bytes
206# Decode bytes after strict RFC 3629 validation.
207def decode_checked(bytes: Bytes.Bytes) -> Result<&1, &1, U32 & String, String>:
208 match bytes:
209 case Bytes.Bytes{len, buf}:
210 utf8.scan(U32.to_nat(len), 0, Bytes.peek(buf, 0), Utf8State{0, 128, 191, 0, SNil{}, True{}})