import { CompositeViewDU } from "@chainsafe/ssz";
import { ChainForkConfig } from "@lodestar/config";
import { ValidatorIndex, ssz } from "@lodestar/types";
/**
 * Load validator from bytes given a seed validator.
 * - Reuse pubkey and withdrawal credentials if possible to save memory
 * - If it's a new validator, deserialize it
 */
export declare function loadValidator(seedValidator: CompositeViewDU<typeof ssz.phase0.Validator>, newValidatorBytes: Uint8Array): CompositeViewDU<typeof ssz.phase0.Validator>;
/**
 * Extract and deserialize validator effective balances from state bytes
 */
export declare function getEffectiveBalancesFromStateBytes(config: ChainForkConfig, stateBytes: Uint8Array, validatorIndices: ValidatorIndex[]): number[];
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