import { IPerformanceClient, Logger } from "@azure/msal-common";
import { LocalStorage } from "./LocalStorage.js";
export declare class BrowserExtensionLocalStorage extends LocalStorage {
    private allSettings;
    constructor(clientId: string, logger: Logger, performanceClient: IPerformanceClient);
    initialize(correlationId: string): Promise<void>;
    getItem(key: string): string | null;
    setItem(key: string, value: string): void;
    removeItem(key: string): void;
    getKeys(): string[];
    containsKey(key: string): boolean;
    /**
     * Removes all known MSAL keys from the cache
     */
    clear(): void;
    protected get isCookieSecure(): boolean;
}
//# sourceMappingURL=BrowserExtensionLocalStorage.d.ts.map