[{"constant":false,"inputs":[{"name":"_hub","type":"address"},{"name":"_denominationAsset","type":"address"},{"name":"_fees","type":"address[]"},{"name":"_feeRates","type":"uint256[]"},{"name":"_feePeriods","type":"uint256[]"},{"name":"_registry","type":"address"}],"name":"createInstance","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"}]