import { BLSPubkey, Epoch } from "@lodestar/types";
export type MinMaxSurroundAttestation = {
    targetEpoch: number;
    sourceEpoch: number;
};
export interface IMinMaxSurround {
    assertNoSurround(pubKey: BLSPubkey, attestation: MinMaxSurroundAttestation): Promise<void>;
    insertAttestation(pubKey: BLSPubkey, attestation: MinMaxSurroundAttestation): Promise<void>;
}
export type DistanceEntry = {
    source: Epoch;
    distance: Epoch;
};
export type IDistanceStore = {
    [P in "minSpan" | "maxSpan"]: {
        get(pubKey: BLSPubkey, epoch: Epoch): Promise<Epoch | null>;
        setBatch(pubKey: BLSPubkey, values: DistanceEntry[]): Promise<void>;
    };
};
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