code: func (ba *bitArray) ToNums() []uint64 {
  	nums := make([]uint64, 0, ba.highest-ba.lowest/4)
  	for i, block := range ba.blocks {
  		block.toNums(uint64(i)*s, &nums)
  	}
  
  	return nums
  }
docs: // ToNums converts this bitarray to a list of numbers contained within it.