[{"constant":true,"inputs":[{"internalType":"bytes","name":"_code","type":"bytes"}],"name":"read","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes","name":"_code","type":"bytes"}],"name":"write","outputs":[{"internalType":"address","name":"target","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"}]