/// <reference types="bn.js" />
import { BN } from '@polkadot/util';
export interface ChainUpgradesRaw {
    genesisHash: string;
    versions: [number, number][];
}
export interface ChainUpgradeVersion {
    blockNumber: BN;
    specVersion: BN;
}
export interface ChainUpgrades {
    genesisHash: Uint8Array;
    versions: ChainUpgradeVersion[];
}