/**
     * - A Rectangle object is an area defined by its position, as indicated by its top-left corner point (x, y) and by its
     * width and its height.<br/>
     * The x, y, width, and height properties of the Rectangle class are independent of each other; changing the value of
     * one property has no effect on the others. However, the right and bottom properties are integrally related to those
     * four properties. For example, if you change the value of the right property, the value of the width property changes;
     * if you change the bottom property, the value of the height property changes.
     * @version DragonBones 3.0
     * @language en_US
     */
export declare class Rectangle {
    /**
     * - The x coordinate of the top-left corner of the rectangle.
     * @default 0.0
     * @version DragonBones 3.0
     * @language en_US
     */
    x: number;
    /**
     * - The y coordinate of the top-left corner of the rectangle.
     * @default 0.0
     * @version DragonBones 3.0
     * @language en_US
     */
    y: number;
    /**
     * - The width of the rectangle, in pixels.
     * @default 0.0
     * @version DragonBones 3.0
     * @language en_US
     */
    width: number;
    /**
     * - The height of the rectangle, in pixels.
     * @default 0.0
     * @version DragonBones 3.0
     * @language en_US
     */
    height: number;
    /**
     * @private
     */
    constructor(x?: number, y?: number, width?: number, height?: number);
    /**
     * @private
     */
    copyFrom(value: Rectangle): void;
    /**
     * @private
     */
    clear(): void;
}