/**
 * A simple data structure to store rewards payable to block proposer in the memory.
 * Rewards are updated throughout the state transition
 * Should only hold info for one state transition
 * All values are in Gwei
 */
export type RewardCache = {
    attestations: number;
    syncAggregate: number;
    slashing: number;
};
export declare function createEmptyRewardCache(): RewardCache;
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