import { FC, ReactElement } from 'react';
import { ChartProps } from '../common/containers/ChartContainer';
import { ColorSchemeType } from '../common/color';
import { SankeyNodeProps, SankeyNode } from './SankeyNode';
import { SankeyLinkProps, SankeyLink } from './SankeyLink';
import { SankeyLabelPosition } from './SankeyLabel';
export type Justification = 'justify' | 'center' | 'left' | 'right';
export type NodeElement = ReactElement<SankeyNodeProps, typeof SankeyNode>;
export type LinkElement = ReactElement<SankeyLinkProps, typeof SankeyLink>;
export interface SankeyProps extends ChartProps {
    /**
     * Whether to animate the enter/update/exit. Set internally by `SankeyNode` and `SankeyLink`.
     *
     * @default true
     */
    animated?: boolean;
    /**
     * Color scheme for the nodes. Set internally by `SankeyNode`.
     */
    colorScheme?: ColorSchemeType;
    /**
     * The node alignment method.
     *
     * @default 'justify'
     */
    justification?: Justification;
    /**
     * Width of the node.
     *
     * @default 15
     */
    nodeWidth?: number;
    /**
     * Vertical padding between nodes in the same column.
     *
     * @default 10
     */
    nodePadding?: number;
    /**
     * Label position.
     *
     * @default 'inside'
     */
    labelPosition?: SankeyLabelPosition;
    /**
     * Sort function for the nodes.
     *
     * If sort is specified, sets the node sort method and returns this Sankey generator.
     * If sort is not specified, returns the current node sort method, which defaults
     * to undefined, indicating that vertical order of nodes within each column will
     * be determined automatically by the layout. If sort is null, the order is fixed
     * by the input. Otherwise, the specified sort function determines the order;
     * the function is passed two nodes, and must return a value less than 0 if the
     * first node should be above the second, and a value greater than 0 if the second
     * node should be above the first, or 0 if the order is not specified.
     *
     * Reference: https://github.com/d3/d3-sankey#sankey_nodeSort
     */
    nodeSort?: (a: any, b: any) => number;
    /**
     * Nodes that are rendered.
     */
    nodes: NodeElement[];
    /**
     * Links that are rendered.
     */
    links: LinkElement[];
}
export declare const Sankey: FC<SankeyProps>;