import type {
  AuthenticationCreds,
  CacheStore,
  SignalKeyStore,
  SignalKeyStoreWithTransaction,
  TransactionCapabilityOptions,
} from "../Types";
import { ILogger } from "./logger";
/**
 * Adds caching capability to a SignalKeyStore
 * @param store the store to add caching to
 * @param logger to log trace events
 * @param _cache cache store to use
 */
export declare function makeCacheableSignalKeyStore(
  store: SignalKeyStore,
  logger?: ILogger,
  _cache?: CacheStore,
): SignalKeyStore;
/**
 * Adds DB like transaction capability (https://en.wikipedia.org/wiki/Database_transaction) to the SignalKeyStore,
 * this allows batch read & write operations & improves the performance of the lib
 * @param state the key store to apply this capability to
 * @param logger logger to log events
 * @returns SignalKeyStore with transaction capability
 */
export declare const addTransactionCapability: (
  state: SignalKeyStore,
  logger?: ILogger,
  { maxCommitRetries, delayBetweenTriesMs }: TransactionCapabilityOptions,
) => SignalKeyStoreWithTransaction;
export declare const initAuthCreds: () => AuthenticationCreds;