[{"constant":true,"inputs":[],"name":"getLastUpdateId","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_assets","type":"address[]"},{"name":"_prices","type":"uint256[]"}],"name":"update","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"hash","type":"bytes32"}],"name":"PriceUpdated","type":"event"}]