/** @typedef {import('./types').RichTextFormat} RichTextFormat */
/**
 * Optimised equality check for format objects.
 *
 * @param {?RichTextFormat} format1 Format to compare.
 * @param {?RichTextFormat} format2 Format to compare.
 *
 * @return {boolean} True if formats are equal, false if not.
 */
export function isFormatEqual(format1: RichTextFormat | null, format2: RichTextFormat | null): boolean;
export type RichTextFormat = import("./types").RichTextFormat;
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