import { ValueOf } from '@kepler.gl/types';
import { AggregationTypes } from '@kepler.gl/constants';
export declare const getFrequency: (data: any[], accessor?: (any: any) => any) => {
    [key: string | number]: number;
};
export declare const getMode: (data: any, accessor: any) => string;
export declare const countUnique: (data: any, accessor?: (d: any) => any) => number;
export declare const percentMean: (data: any, accessor: any) => number;
export declare function aggregate(data: any[], technique: ValueOf<AggregationTypes>, accessor?: (any: any) => any): any;
export declare const AGGREGATION_NAME: {
    [key: string]: string;
};