/**
 * Cache namespace, used for grouping cache entries
 */
export declare enum CacheNamespace {
    CentralSystem = "csms",
    ChargingStation = "cs",
    TenantPathMapping = "tpm",
    Transactions = "tx",
    Connections = "conn",
    Protocol = "prtcl",
    Other = "other"
}
export declare const PATH_DELIMITER = ":";
export declare const getCacheTenantPathMappingKey: (serverId: string, path: string) => string;
export declare const IDENTIFIER_DELIMITER = ":";
export declare const createIdentifier: (tenantId: number, ...args: any[]) => string;
export declare const getTenantIdFromIdentifier: (identifier: string) => number;
export declare const getStationIdFromIdentifier: (identifier: string) => string;
/**
 * Used in the Connections Namespace as the value, to represent a websocket connection
 * Is stringified from JSON when stored in the cache
 */
export interface IWebsocketConnection {
    id: string;
    /**
     * Stored as ISO string in the cache, converted to Date when retrieved
     */
    timeConnected: string;
    protocol: string;
    allowUnknownChargingStations: boolean;
}