import "../../../_dnt.polyfills.js";
import { Chain, ChainRune, RunicArgs, ValueRune } from "../../../mod.js";
export declare function preRuntimeDigest<C extends Chain, U, X>(chain: ChainRune<C, U>, ...[blockHash]: RunicArgs<X, [blockHash: string]>): ValueRune<{
    type: string;
    value: Uint8Array;
}, import("../../../mod.js").ConnectionError | import("../../../mod.js").ServerError | U | RunicArgs.U<X> | CouldNotRetrievePreRuntimeDigestError | null>;
export declare class CouldNotRetrievePreRuntimeDigestError extends Error {
    readonly name = "CouldNotRetrievePreRuntimeDigestItemError";
}