import { CachedBeaconStateAllForks } from "../types.js";
export declare function getFinalityDelay(state: CachedBeaconStateAllForks): number;
/**
 * If the chain has not been finalized for >4 epochs, the chain enters an "inactivity leak" mode,
 * where inactive validators get progressively penalized more and more, to reduce their influence
 * until blocks get finalized again. See here (https://github.com/ethereum/annotated-spec/blob/master/phase0/beacon-chain.md#inactivity-quotient) for what the inactivity leak is, what it's for and how
 * it works.
 */
export declare function isInInactivityLeak(state: CachedBeaconStateAllForks): boolean;
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