import { type ReactElement } from 'react';
import type { GridLineTypeFunctionProps } from 'recharts/types/cartesian/CartesianGrid';
interface DropEdgeGridLinesOptions {
    /** Keep the topmost horizontal grid line unconditionally. */
    keepTop?: boolean;
    /** Keep the bottommost horizontal grid line unconditionally. */
    keepBottom?: boolean;
}
/**
 * `<CartesianGrid horizontal>` render function that conditionally omits the
 * topmost and bottommost horizontal grid lines.
 *
 * - **Top** — implements the Figma "no top x-line" rule (anatomy node
 *   `7533-3334`). Dropped only when the gap from the chart's top edge to the
 *   topmost grid line is less than {@link TOP_LINE_GAP_THRESHOLD} of one
 *   tick-to-tick spacing; above that ratio the gap reads as deliberate
 *   whitespace and the line stays (useful for axes whose nice-tick max sits
 *   well below the data max).
 * - **Bottom** — dropped unconditionally so the solid X-axis line owns the
 *   bottom rail (otherwise the dashed grid line and the solid axis line stack
 *   on top of each other and read as a double line).
 *
 * Either drop can be suppressed via `keepTop` / `keepBottom` (e.g. when the
 * caller hides the X-axis line and wants the grid to draw the bottom rail).
 *
 * Returning an empty `<g/>` (rather than `null`) keeps the type contract:
 * `GridLineType`'s function form requires a `ReactElement<SVGElement>`.
 */
export declare const dropEdgeGridLines: ({ keepTop, keepBottom, }?: DropEdgeGridLinesOptions) => (props: GridLineTypeFunctionProps) => ReactElement<SVGElement>;
export {};