code: func WriteBody(db ethdb.Writer, hash common.Hash, number uint64, body *types.Body) {
  	data, err := rlp.EncodeToBytes(body)
  	if err != nil {
  		log.Crit("Failed to RLP encode body", "err", err)
  	}
  	WriteBodyRLP(db, hash, number, data)
  }
docs: // WriteBody stores a block body into the database.