/**
 * Store data across multiple files for cases, that could contain thousands of entries
 */
import { IArrayStoreOptions } from './JsonArrayStore';
import type { Alot } from 'alot/alot';
export interface IMultiStoreOptions<T> extends IArrayStoreOptions<T> {
    groupKey: (x: T) => number;
    groupSize: number;
}
export declare class JsonArrayMultiStore<T> {
    options: IMultiStoreOptions<T>;
    constructor(options: IMultiStoreOptions<T>);
    query(filter?: {
        groupKey?: {
            from?: number;
            to?: number;
        };
    }): Promise<Alot<T>>;
    fetch(filter?: {
        groupKey?: {
            from?: number;
            to?: number;
        };
    }): Promise<T[]>;
    migrate(store: {
        getAll(): Promise<T[]>;
    }): Promise<void>;
    private getGroupedFiles;
    private getStores;
    private getStore;
    getSingle(groupKey: number, key: string | number): Promise<T>;
    getLatest(groupValue?: number): Promise<T>;
    removeMany(arr: Partial<T>[]): Promise<void>;
    upsertMany(arr: Partial<T>[]): Promise<T[]>;
    private parseRangeFilename;
    private createRangeFilename;
}