import { ApiClient } from "@lodestar/api";
import { ChainForkConfig } from "@lodestar/config";
import { Metrics } from "../metrics.js";
import { IClock, LoggerVc } from "../util/index.js";
import { BlockDutiesService } from "./blockDuties.js";
import { ValidatorStore } from "./validatorStore.js";
/**
 * Signs and submits `SignedProposerPreferences` for any local validator that will propose
 * within the next `SUBMIT_BEFORE_PROPOSAL_SLOTS`. Re-submits automatically when the proposer
 * dependent root for an epoch shifts (e.g. after a reorg) — detected by comparing the cached
 * `dependentRoot` reported by `BlockDutiesService` against the one we last submitted under.
 *
 * Proposers should broadcast their preferences before the fork so the proposer preference caches
 * of beacon nodes and builders are warm for the first Gloas slots. We start submitting
 * as soon as a duty's proposal slot is in Gloas, which is up to `SUBMIT_BEFORE_PROPOSAL_SLOTS`
 * before the fork, so only the first few Gloas slots are affected by this pre-fork submission.
 */
export declare class ProposerPreferencesService {
    private readonly config;
    private readonly logger;
    private readonly api;
    private readonly validatorStore;
    private readonly blockDutiesService;
    private readonly submitted;
    constructor(config: ChainForkConfig, logger: LoggerVc, api: ApiClient, clock: IClock, validatorStore: ValidatorStore, blockDutiesService: BlockDutiesService, _metrics: Metrics | null);
    private runProposerPreferencesTask;
    /** Drop tracking for past epochs; only currentEpoch and currentEpoch + 1 are ever processed. */
    private pruneSubmitted;
}
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