import { Shape } from './shape';
/**
 * Class representing a Triangle.
 * @example
 * new Triangle(0, 10, 20)
 */
export declare class Triangle extends Shape {
    /**
     * Fuzzify
     * @param {number} x - Point on X axis
     * @return {number} fuzzy output 0..1
     */
    fuzzify(x: number): number;
}
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