import { ForkSeq } from "@lodestar/params";
import { AttesterSlashing, IndexedAttestation, IndexedAttestationBigint, Slot, ValidatorIndex, phase0 } from "@lodestar/types";
/**
 * Check if [[data1]] and [[data2]] are slashable according to Casper FFG rules.
 */
export declare function isSlashableAttestationData(data1: phase0.AttestationDataBigint, data2: phase0.AttestationDataBigint): boolean;
export declare function isValidAttestationSlot(attestationSlot: Slot, currentSlot: Slot): boolean;
/**
 * Compute the intersection of two sorted validator index lists.
 * Both inputs must be sorted in ascending order (per spec).
 */
export declare function getIntersectingIndices(indices1: ValidatorIndex[], indices2: ValidatorIndex[]): ValidatorIndex[];
export declare function getAttesterSlashableIndices(attesterSlashing: AttesterSlashing): ValidatorIndex[];
/**
 * Convert IndexedAttestation to IndexedAttestationBigint via SSZ roundtrip.
 * Both types share the same binary layout — only the JS numeric representation differs.
 */
export declare function toIndexedAttestationBigint(att: IndexedAttestation, fork: ForkSeq): IndexedAttestationBigint;
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