import type { ISpec } from '@visactor/vchart';
import type { BarRegressionLineSpec } from './type';
import type { RegressionLineData } from '../regression-line/type';
export declare function getBarRegressionLineConfig(config: Omit<BarRegressionLineSpec, 'visible'>): {
    type: string;
    componentType: string;
    interactive: boolean;
    zIndex: number;
    style: {
        data: (datum: any, ctx: any) => RegressionLineData[];
        line: {
            visible?: boolean;
            style?: import("@visactor/vchart").ILineGraphicAttribute;
        };
        confidenceInterval: {
            visible?: boolean;
            style?: import("@visactor/vchart").IAreaGraphicAttribute;
        };
        label: {
            visible?: boolean;
            text: string;
            style?: import("@visactor/vchart").ITextGraphicAttribute;
        };
    };
};
export declare function appendBarRegressionLineConfig(chartSpec: ISpec, spec?: BarRegressionLineSpec): void;