export interface ChartBarProps {
    /** Which data key to visualize */
    dataKey: string;
    /** Bar fill color (hex string, CSS var, etc.) */
    color: string;
    /** Corner radius on bar tops */
    radius?: number;
}
/**
 * Bar marks. Requires a band xScale (categorical x-axis).
 * Bars grow from the zero line — handles both positive and negative values.
 *
 * @example
 * ```
 * <ChartBar dataKey="revenue" color={useChartColors().categorical(1)[0]} />
 * ```
 */
export declare function ChartBar({ dataKey, color, radius }: ChartBarProps): import("react").JSX.Element | null;
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