import { PushClientOffsetItem } from "../entities/PushClientEntity";
import { AbstractStorageService } from "./AbstractStorageService";
import { IStorageService } from "./IStorageService";
import { StoreNames } from "idb";
import { IDBPDatabase } from "idb/build/entry";
/**
 * 	@class
 */
export declare class PushClientStorageService extends AbstractStorageService<PushClientOffsetItem> implements IStorageService {
    protected db: IDBPDatabase<PushClientOffsetItem>;
    protected storeName: StoreNames<PushClientOffsetItem>;
    constructor();
    protected init(): Promise<unknown>;
    /**
     *	@param item	{any}
     *	@returns {string | null}
     */
    validateValidItem(item: any): string | null;
    /**
     * 	get a storage key
     *
     *	@param value	{PushClientOffsetItem}
     *	@returns {string | null}
     */
    getKeyByItem(value: PushClientOffsetItem): string | null;
}
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