code: func NewBlockFromRLP(data []byte) (*Block, error) {
  	b := &Block{
  		block: new(types.Block),
  	}
  	if err := rlp.DecodeBytes(common.CopyBytes(data), b.block); err != nil {
  		return nil, err
  	}
  	return b, nil
  }
docs: // NewBlockFromRLP parses a block from an RLP data dump.