/**
 * @license
 * Copyright 2022 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
export declare const nextFrame: () => Promise<unknown>;
/**
 * Strips Lit expression comments from provided html string.
 */
export declare const stripExpressionComments: (html: string) => string;
/**
 * Strips Lit expression markers from provided html string.
 */
export declare const stripExpressionMarkers: (html: string) => string;
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