/**
 * A stateful {@link Specification} that passes when the value of the data item
 * crosses a value passed to the constructor. The specification will never pass
 * on the first evaluation. Instead, the first data item is used to determine
 * if the value is currently greater than (or less than) the threshold value
 * (passed to the constructor). This determines if the passing condition means
 * the value must be less than (or greater than) the threshold.
 *
 * @public
 * @extends {Specification}
 */
export default class CrossesSpecification extends Specification {
    /**
     * @param {number} threshold
     */
    constructor(threshold: number);
    /**
     * @protected
     * @override
     * @param {*} data
     * @returns {boolean}
     */
    protected override _evaluate(data: any): boolean;
    #private;
}
import Specification from './Specification.js';