import { Bitcoind } from '../../types';
type GetBlockHeaderParams = {
    bitcoind: Bitcoind;
    blockhash: string;
    verbose?: boolean;
};
/**
 * getblockheader "blockhash" ( verbose )
 *
 * If verbose is false, returns a string that is serialized, hex-encoded data for blockheader 'hash'.
 * If verbose is true, returns an Object with information about blockheader 'hash'.
 *
 */
export declare function getBlockHeader(params: GetBlockHeaderParams): Promise<any>;
export {};