import * as i0 from "@angular/core";
export declare class StorageService {
    constructor();
    setItem(key: string, value: string): Promise<unknown>;
    getItem(key: string): string;
    removeItem(key: string): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<StorageService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<StorageService>;
}
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