import { EventEmitter, AfterContentInit, TemplateRef, ChangeDetectorRef } from '@angular/core';
import { IgxRingSeriesBaseComponent } from './igx-ring-series-base-component';
import * as i0 from "@angular/core";
export declare class IgxDoughnutChartDefaultTooltipsComponent implements AfterContentInit {
    private _changeDetectorRef;
    doughnutSliceTooltip: TemplateRef<any>;
    constructor(_changeDetectorRef: ChangeDetectorRef);
    ensureDefaultTooltip(series: IgxRingSeriesBaseComponent): void;
    getSliceLabel(series: any, item: any): any;
    getValue(series: any, item: any): any;
    getValueMemberPath(series: any): any;
    getBrush(i: any): any;
    private static _registered;
    static register(): void;
    onContentReady: EventEmitter<any>;
    ngAfterContentInit(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<IgxDoughnutChartDefaultTooltipsComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<IgxDoughnutChartDefaultTooltipsComponent, "igx-dougnut-chart-default-tooltips", never, {}, { "onContentReady": "onContentReady"; }, never, never, true, never>;
}