[{"inputs":[{"internalType":"address","name":"authorized_caller_","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"constant":true,"inputs":[],"name":"authorized_caller","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"src","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"bytes4","name":"","type":"bytes4"}],"name":"canCall","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"}]