import { ChainForkConfig } from "@lodestar/config";
import { ForkSeq } from "@lodestar/params";
import { Epoch, ValidatorIndex, phase0 } from "@lodestar/types";
import { BeaconStateAllForks, CachedBeaconStateElectra, CachedBeaconStateGloas, EpochCache } from "../types.js";
/**
 * Check if [[validator]] is active
 */
export declare function isActiveValidator(validator: phase0.Validator, epoch: Epoch): boolean;
/**
 * Check if [[validator]] is slashable
 */
export declare function isSlashableValidator(validator: phase0.Validator, epoch: Epoch): boolean;
/**
 * Return the sequence of active validator indices at [[epoch]].
 *
 * NAIVE - SLOW CODE 🐢
 */
export declare function getActiveValidatorIndices(state: BeaconStateAllForks, epoch: Epoch): Uint32Array;
export declare function getValidatorActivationChurnLimit(config: ChainForkConfig, fork: ForkSeq, activeValidatorCount: number): number;
export declare function getChurnLimit(config: ChainForkConfig, activeValidatorCount: number): number;
/**
 * Get combined churn limit of activation-exit and consolidation
 */
export declare function getBalanceChurnLimit(totalActiveBalanceIncrements: number, churnLimitQuotient: number, minPerEpochChurnLimit: number): number;
export declare function getBalanceChurnLimitFromCache(epochCtx: EpochCache): number;
export declare function getActivationExitChurnLimit(epochCtx: EpochCache): number;
/**
 * https://github.com/ethereum/consensus-specs/blob/v1.7.0-alpha.6/specs/gloas/beacon-chain.md#new-get_activation_churn_limit
 */
export declare function getActivationChurnLimit(epochCtx: EpochCache): number;
/**
 * https://github.com/ethereum/consensus-specs/blob/v1.7.0-alpha.6/specs/gloas/beacon-chain.md#new-get_exit_churn_limit
 */
export declare function getExitChurnLimit(epochCtx: EpochCache): number;
/**
 * Spec (electra): get_consolidation_churn_limit (uses combined balance churn minus activation+exit churn)
 * Spec (gloas): get_consolidation_churn_limit (independent quotient, no MIN floor)
 */
export declare function getConsolidationChurnLimit(fork: ForkSeq, epochCtx: EpochCache): number;
export declare function getGloasChurnLimits(config: ChainForkConfig, totalActiveBalanceIncrements: number): {
    exit: number;
    activation: number;
    consolidation: number;
};
export declare function getMaxEffectiveBalance(withdrawalCredentials: Uint8Array): number;
/**
 * Check if validator is partially withdrawable.
 * https://github.com/ethereum/consensus-specs/blob/v1.7.0-alpha.1/specs/electra/beacon-chain.md#modified-is_partially_withdrawable_validator
 */
export declare function isPartiallyWithdrawableValidator(fork: ForkSeq, validator: phase0.Validator, balance: number): boolean;
export declare function getPendingBalanceToWithdraw(state: CachedBeaconStateElectra | CachedBeaconStateGloas, validatorIndex: ValidatorIndex): number;
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