import type { Logger } from 'pino';
import type { CacheStore, AuthenticationCreds, SignalKeyStore, SignalKeyStoreWithTransaction, TransactionCapabilityOptions } from "../Models";
/**
 * Adds caching capability to a SignalKeyStore
 * @param store the store to add caching to
 * @param logger to log trace events
 * @param opts NodeCache options
 */
export declare function makeCacheableSignalKeyStore(store: SignalKeyStore, logger: Logger, _cache?: CacheStore): SignalKeyStore;
export declare const addTransactionCapability: (state: SignalKeyStore, logger: Logger, { maxCommitRetries, delayBetweenTriesMs }: TransactionCapabilityOptions) => SignalKeyStoreWithTransaction;
export declare const initAuthCreds: () => AuthenticationCreds;