export interface SankeyGridProps {
    /** Dash pattern (default: "4 4") */
    dashArray?: string;
    /** Stroke color (default: theme border) */
    color?: string;
    /** Opacity (default: 0.3) */
    opacity?: number;
    /** Show column header labels if defined (default: true) */
    showHeaders?: boolean;
}
/**
 * Vertical grid lines at each column position, with optional column headers.
 *
 * Place before SankeyLink so grid renders behind ribbons.
 */
export declare function SankeyGrid({ dashArray, color, opacity, showHeaders, }: SankeyGridProps): import("react").JSX.Element;
export declare namespace SankeyGrid {
    var displayName: string;
}
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