import type { CancelablePromise } from "../core/CancelablePromise.js";
import type { BaseHttpRequest } from "../core/BaseHttpRequest.js";
export declare class StorageService {
    readonly httpRequest: BaseHttpRequest;
    constructor(httpRequest: BaseHttpRequest);
    /**
     * @returns any Retrieve stored data
     * @throws ApiError
     */
    retrieveStoredData(): CancelablePromise<Array<any>>;
    /**
     * @returns any Save some piece of information
     * @throws ApiError
     */
    saveData({ requestBody, }: {
        requestBody?: {
            key: string;
            value?: any;
        };
    }): CancelablePromise<{
        success: boolean;
    }>;
    /**
     * @returns any Get specific entry by key
     * @throws ApiError
     */
    getDataByKey({ key, }: {
        key: string;
    }): CancelablePromise<any>;
    /**
     * @returns any Delete specific data by key
     * @throws ApiError
     */
    deleteDataByKey({ key, }: {
        key: string;
    }): CancelablePromise<{
        success: boolean;
    }>;
}