import type { Aggregator } from './../interfaces/aggregator.interface.js';
import type { GroupTotals } from './../interfaces/grouping.interface.js';
import { BaseAggregatorClass } from './baseAggregatorClass.js';
export declare class CloneAggregator extends BaseAggregatorClass implements Aggregator {
    private _data;
    constructor(field: number | string);
    init(_item?: any, isTreeAggregator?: boolean): void;
    accumulate(item: any): void;
    storeResult(groupTotals: GroupTotals): void;
}
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