code: func GetBlockFromBlockBytes(blockBytes []byte) (*cb.Block, error) {
  	block := &cb.Block{}
  	err := proto.Unmarshal(blockBytes, block)
  	if err != nil {
  		return block, errors.Wrap(err, "error unmarshaling block")
  	}
  	return block, nil
  }
docs: // GetBlockFromBlockBytes marshals the bytes into Block