import { DuoyunChartBaseElement } from './base/chart';
export interface SankeyNode {
    id: string;
    label: string;
    value?: number;
}
export interface SankeyLink {
    source: string;
    target: string;
    value: number;
}
export interface SankeyData {
    nodes: SankeyNode[];
    links: SankeyLink[];
}
export declare class DuoyunSankeyChartElement extends DuoyunChartBaseElement {
    #private;
    data?: SankeyData;
    nodeWidth: number;
    nodePadding: number;
    xAxi: null;
    yAxi: null;
    render: () => import("@mantou/gem/lib/lit-html").TemplateResult;
}
//# sourceMappingURL=sankey-chart.d.ts.map