/**
 * LatestBlockhash response types and codec
 */
export interface LatestBlockhashResponse {
    readonly blockhash: string;
    readonly lastValidBlockHeight: bigint;
}
export interface LatestBlockhashRpcResponse {
    readonly context: {
        readonly slot: number;
    };
    readonly value: LatestBlockhashResponse;
}
export declare const LatestBlockhashCodec: import("../../codec").BaseCodec<LatestBlockhashResponse>;
export declare const LatestBlockhashRpcResponseCodec: import("../../codec").BaseCodec<LatestBlockhashRpcResponse>;
export declare function createLatestBlockhashResponse(data: unknown): LatestBlockhashRpcResponse;