code: func (mw *memoryWrapper) slice(begin, end int64) []byte {
  	if mw.memory.Len() < int(end) {
  		// TODO(karalabe): We can't js-throw from Go inside duktape inside Go. The Go
  		// runtime goes belly up https://github.com/golang/go/issues/15639.
  		log.Warn("Tracer accessed out of bound memory", "available", mw.memory.Len(), "offset", begin, "size", end-begin)
  		return nil
  	}
  	return mw.memory.Get(begin, end-begin)
  }
docs: // slice returns the requested range of memory as a byte slice.