import type { ExtendedViemClient } from '../../../client.js';
import type { Provider } from '../transports/index.js';
/**
 * Gets the slot leader for a given slot
 *
 * @param client - Extended Viem client
 * @param params - Parameters for {@link sol_getSlotLeader}
 * @returns Promise resolving to slot leader information
 */
export declare function getSlotLeader(client: ExtendedViemClient, ...params: Parameters<Provider['sol_getSlotLeader']>): Promise<import("@solana/nominal-types").NominalType<"brand", "Address"> & import("@solana/nominal-types").NominalType<"stringEncoding", "base58"> & string>;