/**
 * @license
 * Copyright 2019 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import type { ConstantProvider } from '../common/constants.js';
import { Measurable } from './base.js';
/**
 * An object containing information about the space a hat takes up during
 * rendering.
 */
export declare class Hat extends Measurable {
    ascenderHeight: number;
    /**
     * @param constants The rendering constants provider.
     */
    constructor(constants: ConstantProvider);
}
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