import { BaseWidget } from '../base-widget';
import { NgAisInstantSearch } from '../instantsearch/instantsearch';
import { NgAisIndex } from '../index-widget/index-widget';
export declare type RangeSliderState = {
    range: {
        min: number;
        max: number;
    };
    refine: Function;
    start: number[];
};
export declare class NgAisRangeSlider extends BaseWidget {
    parentIndex: NgAisIndex;
    instantSearchInstance: NgAisInstantSearch;
    sliderContainer: any;
    pips: boolean;
    tooltips: boolean;
    attribute: string;
    min?: number;
    max?: number;
    precision?: number;
    state: RangeSliderState;
    private slider;
    get step(): number;
    constructor(parentIndex: NgAisIndex, instantSearchInstance: NgAisInstantSearch);
    ngOnInit(): void;
    updateState: (state: any, isFirstRendering: boolean) => void;
    handleChange: (values: string[] | number[]) => void;
    formatTooltip: (value: number) => string;
}