/**
 * Deploy contract on EVM. If salt is provided, uses CREATE2 factory for deterministic address.
 * @param ethers - ethers from hardhat runtime (hre.ethers)
 * @param artifacts - hardhat artifacts (hre.artifacts)
 * @param contractName - contract name to deploy
 * @param args - constructor arguments array
 * @param salt - optional CREATE2 salt for deterministic address
 * @returns deployed contract address (0x hex)
 */
export declare function evmDeploy(ethers: any, artifacts: any, contractName: string, args?: any[], salt?: string): Promise<string>;
/**
 * Deploy implementation + ERC1967 proxy in one step.
 * If salt is provided, proxy is deployed via factory.
 * @param ethers - ethers from hardhat runtime (hre.ethers)
 * @param artifacts - hardhat artifacts (hre.artifacts)
 * @param contractName - implementation contract name
 * @param initArgs - initialize() function arguments
 * @param salt - optional CREATE2 salt for proxy
 * @returns { proxy, implementation } addresses
 */
export declare function evmDeployProxy(ethers: any, artifacts: any, contractName: string, initArgs?: any[], salt?: string): Promise<{
    proxy: string;
    implementation: string;
}>;
/**
 * Upgrade a UUPS proxy to a new implementation.
 * Deploys new implementation, then calls upgradeToAndCall on the proxy.
 * @param ethers - ethers from hardhat runtime (hre.ethers)
 * @param contractName - new implementation contract name
 * @param proxyAddr - proxy address to upgrade
 * @returns new implementation address
 */
export declare function evmUpgradeProxy(ethers: any, contractName: string, proxyAddr: string): Promise<string>;