code: func (bi *BigInts) Get(index int) (bigint *BigInt, _ error) {
  	if index < 0 || index >= len(bi.bigints) {
  		return nil, errors.New("index out of bounds")
  	}
  	return &BigInt{bi.bigints[index]}, nil
  }
docs: // Get returns the bigint at the given index from the slice.