import type { DataXY } from 'cheminfo-types';
type BaseLineFn = (x: number) => number;
/**
 * Adds a baseline to the spectrum data.
 * @param data - The spectrum data to modify.
 * @param baselineFct - Function that generates the baseline value for a given x.
 * @returns The modified spectrum data.
 */
export default function addBaseline(data: DataXY, baselineFct: BaseLineFn): DataXY<import("cheminfo-types").NumberArray>;
export {};
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