import type { Chain } from 'viem';
import { type CheckedChainWithEns } from './consts.js';
type AddEnsContractsOptions = {
    /** Overrides the default ENS subgraph URL for the chain */
    subgraphUrl?: string;
};
/**
 * Adds ENS contract addresses to the viem chain
 * @param chain - The viem {@link Chain} object to add the ENS contracts to
 * @param options.subgraphUrl - Overrides the default ENS subgraph URL
 *
 * @example
 * import { createPublicClient, http } from 'viem'
 * import { electroneum } from 'viem/chains'
 * import { addEnsContracts } from '@etn-sc/ensjs'
 *
 * const clientWithEns = createPublicClient({
 *   chain: addEnsContracts(electroneum),
 *   transport: http(),
 * })
 */
export declare const addEnsContracts: <const TChain extends Chain>(chain: TChain, options?: AddEnsContractsOptions) => CheckedChainWithEns<TChain>;
export {};