export declare const STORAGE_FILE_NAME = "econetRheem.json";
export declare const STORAGE_KEY_AUTH = "auth";
export declare const STORAGE_KEY_MQTT = "mqtt";
export declare const STORAGE_KEY_RECOVERY_RATES = "rates";
export declare function safeGetItem(filePath: string, key: string): string | null;
export declare function safeSetItem(filePath: string, key: string, value: string): void;