import type { Hash } from 'viem';
import type { CrossDomainMessage } from '../../types/interop/cdm.js';
/**
 * Hash an L2 to L2 cross domain message
 * @category Utils
 * @param message {@link CrossDomainMessage}
 * @returns Hash of the cross domain message
 */
export declare function hashCrossDomainMessage(message: CrossDomainMessage): Hash;