/**
 * @license
 * Copyright 2019 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
/**
 * Class for representing sizes consisting of a width and height.
 */
export declare class Size {
    width: number;
    height: number;
    /**
     * @param width Width.
     * @param height Height.
     */
    constructor(width: number, height: number);
    /**
     * Compares sizes for equality.
     *
     * @param a A Size.
     * @param b A Size.
     * @returns True iff the sizes have equal widths and equal heights, or if both
     *     are null.
     */
    static equals(a: Size | null, b: Size | null): boolean;
}
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