const SALT: string; // bytes32 encoding of "Mattresses in Berlin!"

const DEPLOYER_CONTRACT = "0x4e59b44847b379578588920ca78fbf26c0b4956c";

const CONTRACT_NAMES = {
  authenticator: "GPv2AllowListAuthentication",
  settlement: "GPv2Settlement",
};

type ContractName = "GPv2AllowListAuthentication" | "GPv2Settlement";

type DeploymentArguments = {
  GPv2AllowListAuthentication: []; // No constructor arguments
  GPv2Settlement: [string, string]; // [authenticator, vaultRelayer]
};

interface ArtifactDeployment {
  abi: any[];
  bytecode: string;
}

function deterministicDeploymentAddress(
  artifact: ArtifactDeployment,
  args: any[]
): string;

address = keccak256(0xff ++ deployerAddress ++ salt ++ keccak256(initCode))[12:]

import { deterministicDeploymentAddress, SALT, DEPLOYER_CONTRACT } from "@cowprotocol/contracts";

const address = deterministicDeploymentAddress(
  settlementArtifact,
  [authenticatorAddress, vaultRelayerAddress]
);

console.log("Predicted address:", address);
// 0x9008D19f58AAbD9eD0D60971565AA8510560ab41