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