import { RpcSource } from './index.js';
/**
 * Retrieves the height of the most recently finalized block. Doesn't seem to work on Sepolia.
 *
 * @param rpc - The RPC source to use for querying the blockchain.
 * @returns A promise that resolves to the finalized block height as a number.
 */
export declare function getFinalizedBlockHeight(rpc: RpcSource): Promise<number>;