import type { DataXY, FromTo } from 'cheminfo-types';
export interface XYExtractOptions {
    zones?: FromTo[];
}
/**
 * Extract zones from a XY data.
 * @param data - Object that contains property x (an ordered increasing array) and y (an array)
 * @param options - options
 * @returns - Array of points
 */
export declare function xyExtract(data: DataXY, options?: XYExtractOptions): DataXY;
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