[{"inputs":[{"internalType":"string","name":"key","type":"string"}],"name":"addKey","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"keyHash","type":"uint256"}],"name":"getKey","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"hashes","type":"uint256[]"}],"name":"getKeys","outputs":[{"internalType":"string[]","name":"values","type":"string[]"}],"stateMutability":"view","type":"function"}]