[
  {
    "inputs": [],
    "stateMutability": "nonpayable",
    "type": "constructor"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "nonce",
        "type": "uint256"
      }
    ],
    "name": "NonceBurnt",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": false,
        "internalType": "address",
        "name": "new_signer",
        "type": "address"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "nonce",
        "type": "uint256"
      }
    ],
    "name": "SignerAdded",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": false,
        "internalType": "address",
        "name": "old_signer",
        "type": "address"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "nonce",
        "type": "uint256"
      }
    ],
    "name": "SignerRemoved",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": false,
        "internalType": "uint16",
        "name": "new_threshold",
        "type": "uint16"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "nonce",
        "type": "uint256"
      }
    ],
    "name": "ThresholdSet",
    "type": "event"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "new_signer",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "nonce",
        "type": "uint256"
      },
      {
        "internalType": "bytes",
        "name": "signatures",
        "type": "bytes"
      }
    ],
    "name": "add_signer",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "nonce",
        "type": "uint256"
      },
      {
        "internalType": "bytes",
        "name": "signatures",
        "type": "bytes"
      }
    ],
    "name": "burn_nonce",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "get_current_threshold",
    "outputs": [
      {
        "internalType": "uint16",
        "name": "",
        "type": "uint16"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "get_valid_signer_count",
    "outputs": [
      {
        "internalType": "uint8",
        "name": "",
        "type": "uint8"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "nonce",
        "type": "uint256"
      }
    ],
    "name": "is_nonce_used",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "signer_address",
        "type": "address"
      }
    ],
    "name": "is_valid_signer",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "old_signer",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "nonce",
        "type": "uint256"
      },
      {
        "internalType": "bytes",
        "name": "signatures",
        "type": "bytes"
      }
    ],
    "name": "remove_signer",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint16",
        "name": "new_threshold",
        "type": "uint16"
      },
      {
        "internalType": "uint256",
        "name": "nonce",
        "type": "uint256"
      },
      {
        "internalType": "bytes",
        "name": "signatures",
        "type": "bytes"
      }
    ],
    "name": "set_threshold",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "name": "signers",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "bytes",
        "name": "signatures",
        "type": "bytes"
      },
      {
        "internalType": "bytes",
        "name": "message",
        "type": "bytes"
      },
      {
        "internalType": "uint256",
        "name": "nonce",
        "type": "uint256"
      }
    ],
    "name": "verify_signatures",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  }
]
