import type { IDIDRepository } from "./interfaces.js";
/**
 * Simple in-memory implementation of IDIDRepository.
 * Suitable for testing and development, but data is lost when the process exits.
 */
export declare class InMemoryDIDRepository implements IDIDRepository {
    private storage;
    store(shortFormDid: string, longFormDid: string): Promise<void>;
    retrieve(shortFormDid: string): Promise<string | null>;
    exists(shortFormDid: string): Promise<boolean>;
    /**
     * Clear all stored DIDs (useful for testing)
     */
    clear(): void;
    /**
     * Get the number of stored DIDs
     */
    size(): number;
}
/**
 * Helper function to extract the short form DID from a long form variant 4 DID
 * @param longFormDid The long form DID (did:peer:4zHash:zDocument)
 * @returns The short form DID (did:peer:4zHash)
 */
export declare function extractShortFormDid(longFormDid: string): string;
/**
 * Convenience function to store a long form DID in a repository using its short form as the key
 * @param longFormDid The long form DID to store
 * @param repository The repository to store it in
 */
export declare function storeLongFormDid(longFormDid: string, repository: IDIDRepository): Promise<string>;