const multicaller = Multicaller(provider);
// The maximum amount of gas to allow each sub-call to consume
multicaller.gasLimtPerCall = 50000;
// The maximum result length to allow each call to return
multicaller.resultLimitPerCall = 1024;
multicaller.queue(address, fragment [ , values ]) => Promise<any>
multicaller.queueResult(address, fragment [ , values ]) => Promise<Result>
multicall.flush() => Promise<number>

const ABI = [
  "function execute(uint gasLimit, uint maxResultSize, address[] addrs, bytes[] datas) view returns (uint blockNumber, uint[] statuses, bytes[] results)"
];
const contract = new Contract("multicall.eth", ABI, provider);