import { BuilderIndex, Slot } from "@lodestar/types";
/**
 * Tracks execution payload bids we've already seen per (slot, builder).
 */
export declare class SeenExecutionPayloadBids {
    private readonly builderIndexesBySlot;
    private lowestPermissibleSlot;
    isKnown(slot: Slot, builderIndex: BuilderIndex): boolean;
    add(slot: Slot, builderIndex: BuilderIndex): void;
    prune(currentSlot: Slot): void;
}
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