code: func fuzzDecode(data []byte) int {
  	blob, err := bitsetDecodeBytes(data, 1024)
  	if err != nil {
  		return 0
  	}
  	if comp := bitsetEncodeBytes(blob); !bytes.Equal(comp, data) {
  		panic("content mismatch")
  	}
  	return 0
  }
docs: // fuzzDecode implements a go-fuzz fuzzer method to test the bit decoding and
  // reencoding algorithm.