import type { VisualizationOptions, VisualizationTheme } from '../../types';
/**
 * LineDataItem is the type for each data item in the line chart.
 */
export type LineDataItem = {
    time: string | number;
    value: number;
    group?: string;
};
/**
 * LineConfig defines the configuration for rendering the line chart.
 */
export interface LineConfig {
    type?: 'line';
    data: LineDataItem[];
    title?: string;
    axisXTitle?: string;
    axisYTitle?: string;
    theme?: VisualizationTheme;
    style?: {
        backgroundColor?: string;
        palette?: string[];
        lineWidth?: number;
    };
}
/**
 * LineInstance represents a line chart instance with render and destroy methods.
 */
export interface LineInstance {
    render: (config: LineConfig) => void;
    destroy: () => void;
}
/**
 * Line chart component using G2 5.0.
 *
 * @example
 * ```ts
 * const line = Line({
 *   container: '#container',
 *   width: 600,
 *   height: 400,
 * });
 *
 * line.render({
 *   type: 'line',
 *   data: [
 *     { time: '2015 年', value: 1700 },
 *     { time: '2016 年', value: 1500 },
 *     { time: '2017 年', value: 1200 },
 *   ],
 *   title: '出生人口变化',
 *   axisXTitle: '年份',
 *   axisYTitle: '出生人口（万人）',
 * });
 *
 * line.destroy();
 * ```
 */
export declare const Line: (options: VisualizationOptions) => LineInstance;