[
  {
    "constant": true,
    "inputs": [],
    "name": "getCurrentBlockTimestamp",
    "outputs": [
      {
        "name": "timestamp",
        "type": "uint256"
      }
    ],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [
      {
        "components": [
          {
            "name": "target",
            "type": "address"
          },
          {
            "name": "callData",
            "type": "bytes"
          }
        ],
        "name": "calls",
        "type": "tuple[]"
      }
    ],
    "name": "aggregate",
    "outputs": [
      {
        "name": "blockNumber",
        "type": "uint256"
      },
      {
        "name": "returnData",
        "type": "bytes[]"
      }
    ],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [],
    "name": "getLastBlockHash",
    "outputs": [
      {
        "name": "blockHash",
        "type": "bytes32"
      }
    ],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [
      {
        "name": "addr",
        "type": "address"
      }
    ],
    "name": "getEthBalance",
    "outputs": [
      {
        "name": "balance",
        "type": "uint256"
      }
    ],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [],
    "name": "getCurrentBlockDifficulty",
    "outputs": [
      {
        "name": "difficulty",
        "type": "uint256"
      }
    ],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [],
    "name": "getCurrentBlockGasLimit",
    "outputs": [
      {
        "name": "gaslimit",
        "type": "uint256"
      }
    ],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [],
    "name": "getCurrentBlockCoinbase",
    "outputs": [
      {
        "name": "coinbase",
        "type": "address"
      }
    ],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [
      {
        "name": "blockNumber",
        "type": "uint256"
      }
    ],
    "name": "getBlockHash",
    "outputs": [
      {
        "name": "blockHash",
        "type": "bytes32"
      }
    ],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
  }
]