import "../../_dnt.polyfills.js";
import * as $ from "../../deps/scale.js";
import { ListOrValue, NumberOrHex, Subscription } from "./utils.js";
/** Generic header digest. */
export interface Digest {
    /** A list of logs in the digest. */
    logs: string[];
}
export declare const $digest: $.Codec<Digest>;
/** Abstraction over a block header for a substrate chain. */
export interface Header {
    /** The parent hash. */
    parentHash: string;
    /** The block number. */
    number: string;
    /** The state trie merkle root */
    stateRoot: string;
    /** The merkle root of the extrinsics. */
    extrinsicsRoot: string;
    /** A chain-specific digest of data useful for light clients or referencing auxiliary data. */
    digest: Digest;
}
export declare const $header: $.Codec<Header>;
export interface Block {
    /** The block header. */
    header: Header;
    /** The accompanying extrinsics. */
    extrinsics: string[];
}
export declare const $block: $.Codec<Block>;
/** Abstraction over a substrate block and justification. */
export interface SignedBlock {
    /** Full block. */
    block: Block;
    /** Block justification. */
    justifications: [number[], number[]][] | null;
}
export declare const $signedBlock: $.Codec<SignedBlock>;
export type ChainCalls = {
    /** Get header. */
    chain_getHeader(hash?: string): Header | null;
    /** Get header and body of a relay chain block. */
    chain_getBlock(hash?: string): SignedBlock | null;
    /**
     * Get hash of the n-th block in the canon chain.
     *
     * By default returns latest block hash.
     */
    chain_getBlockHash(height?: ListOrValue<NumberOrHex>): ListOrValue<string | null>;
    chain_getHead: ChainCalls["chain_getBlockHash"];
    /** Get hash of the last finalized block in the canon chain. */
    chain_getFinalizedHead(): string;
    chain_getFinalisedHead: ChainCalls["chain_getFinalizedHead"];
};
export type ChainSubscriptions = {
    /** All head subscription. */
    chain_subscribeAllHeads(): Subscription<"chain_unsubscribeAllHeads", Header>;
    /** New head subscription. */
    chain_subscribeNewHeads(): Subscription<"chain_unsubscribeNewHeads", Header>;
    /** Finalized head subscription. */
    chain_subscribeFinalizedHeads(): Subscription<"chain_unsubscribeAllHeads", Header>;
    chain_subscribeFinalisedHeads: ChainSubscriptions["chain_subscribeFinalizedHeads"];
};