code: func (b *Bitmap) Slice() []uint64 {
  	var a []uint64
  	itr := b.Iterator()
  	itr.Seek(0)
  
  	for v, eof := itr.Next(); !eof; v, eof = itr.Next() {
  		a = append(a, v)
  	}
  	return a
  }
docs: // Slice returns a slice of all integers in the bitmap.