def dec.byte
import bend-kit-tar@0.3.0.0/tar.bend as Tarimport Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes
82def dec.byte(b: Bytes.Bytes, +i: U32) -> Bytes.Bytes & Maybe<&2, DByte>:
83 Bytes.Bytes{+len, a} = b
84 dec.byte.of(len, Bytes.peek(a, i))