import type { DataXY, NumberArray } from 'cheminfo-types';
/**
 * Filters x,y values to allow strictly growing values in x-axis.
 * @param data - Object that contains property x (an ordered increasing array) and y (an array).
 */
export declare function xyEnsureGrowingX<DataType extends NumberArray = NumberArray>(data: DataXY<DataType>): DataXY<DataType | number[]>;
//# sourceMappingURL=xyEnsureGrowingX.d.ts.map