import { BLSPubkey, Epoch, Root } from "@lodestar/types";
import { Logger } from "@lodestar/utils";
import { Interchange, InterchangeFormatVersion } from "./interchange/types.js";
import { SlashingProtectionAttestation, SlashingProtectionBlock } from "./types.js";
export interface ISlashingProtection {
    /**
     * Check a block proposal for slash safety, and if it is safe, record it in the database
     */
    checkAndInsertBlockProposal(pubKey: BLSPubkey, block: SlashingProtectionBlock): Promise<void>;
    /**
     * Check an attestation for slash safety, and if it is safe, record it in the database
     */
    checkAndInsertAttestation(pubKey: BLSPubkey, attestation: SlashingProtectionAttestation): Promise<void>;
    /**
     * Check whether a validator as identified by `pubKey` has attested in the specified `epoch`
     */
    hasAttestedInEpoch(pubKey: BLSPubkey, epoch: Epoch): Promise<boolean>;
    importInterchange(interchange: Interchange, genesisValidatorsRoot: Uint8Array | Root, logger?: Logger): Promise<void>;
    exportInterchange(genesisValidatorsRoot: Uint8Array | Root, pubkeys: BLSPubkey[], formatVersion: InterchangeFormatVersion, logger?: Logger): Promise<Interchange>;
}
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