import { ArcProps, Chart, ChartDataset, ChartMeta } from 'chart.js';
export interface ChartItem {
    value?: number;
    label?: string;
}
export interface OuterLabelsConfig {
    offset?: number;
    padding?: number;
    fontNormalColor?: string;
    fontNormalSize?: number;
    fontNormalFamily?: string;
    fontBoldColor?: string;
    fontBoldSize?: number;
    fontBoldFamily?: string;
    fontNormalStyle?: string;
    fontBoldStyle?: string;
    twoLines?: boolean;
    debug?: boolean;
    formatter?: (item: ChartItem) => string;
}
interface Point {
    x: number;
    y: number;
    angle: number;
    segmentAngle?: number;
    index?: number;
    taken?: boolean;
    label?: string;
    middle?: boolean;
}
declare module 'chart.js' {
    interface Chart {
        outerLabels: OuterLabels;
    }
    interface PluginOptionsByType<TType extends ChartType> {
        outerLabels?: OuterLabelsConfig | false;
    }
}
declare class OuterLabels {
    private chart;
    private config;
    private ctx;
    private meta;
    private points;
    private model;
    init(chartInstance: Chart): void;
    configure(override: OuterLabelsConfig): void;
    resolveDataset(): void;
    generatePoints(view: ArcProps): void;
    intersectCircleLine(circle: any, line: any): any;
    resolve(dataset: ChartDataset<'doughnut'>, meta: ChartMeta): any[];
    getAngle(origin: any, point: any): number;
    drawLabels(): void;
    drawDoubleLine(view: ArcProps, point: Point): void;
    drawSingleLine(view: ArcProps, point: Point): void;
    closest(arr: any, goal: any): any;
    radians(degrees: any): number;
    degrees(radians: any): number;
}
export {};