import type { XYChartThresholdDatapoint } from '../../types/xy-chart.js';
/**
 * Retrieves either the 'yMin' or 'yMax' value from `data` based on `type`,
 * defaulting to `data.y` if the specific key is missing or 0 in case
 * of no `data.y`.
 *
 * @param data - Object containing potential 'yMin', 'yMax', or 'y' properties.
 * @param type - Specifies whether to retrieve 'min' (yMin) or 'max' (yMax).
 * @returns The 'yMin', 'yMax', or 'y' value from the data object.
 */
export declare const getYValue: (data: XYChartThresholdDatapoint, type: "min" | "max") => import("../../types/xy-chart.js").XYChartThresholdValue;