import type { EventId } from '../../utils/EventId.ts';
import { CheckpointBasisFact } from './CheckpointBasisFactBase.ts';
import type { CheckpointBasisFactShardFamily, CheckpointBasisFactTransport } from './CheckpointBasisFactTypes.ts';
export declare class CheckpointContentAnchorFact extends CheckpointBasisFact {
    readonly kind: "content-anchor";
    readonly owner: string;
    readonly contentOid: string;
    readonly retainedPayloadByteHash: string | null;
    readonly eventId: EventId;
    constructor(options: {
        readonly owner: string;
        readonly contentOid: string;
        readonly retainedPayloadByteHash?: string | null;
        readonly eventId: EventId;
    });
    shardFamily(): CheckpointBasisFactShardFamily;
    shardPath(): string;
    sortKey(): string;
    toTransport(): CheckpointBasisFactTransport;
}
