import type { Range, Signal1D } from '@zakodium/nmr-types';
/**
 *
 * @param {object} range
 * @param {String('both' | 'range' | 'signal')} unlinkType
 * @param {object} options
 * @param {number} [options.signalIndex]
 * @returns {object}
 */
interface UnlinkOptions {
    unlinkType?: 'both' | 'range' | 'signal';
    signalIndex?: number;
}
export declare function unlink(range: Range, options?: UnlinkOptions): Range;
export declare function getOpacityBasedOnSignalKind(input: Range | Signal1D): 1 | 0.3;
export declare function isSignalRange(range: Range): boolean;
export {};
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