import * as i0 from "@angular/core";
export declare class InMemoryStorageService implements Storage {
    #private;
    setItem(key: string, data: any): void;
    getItem(key: string): any;
    removeItem(key: string): void;
    clear(): void;
    get length(): number;
    key(index: number): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<InMemoryStorageService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<InMemoryStorageService>;
}