import type { DarkColorHandler, DefaultFormat } from 'roosterjs-editor-types';
/**
 * Apply format to an HTML element
 * @param element The HTML element to apply format to
 * @param format The format to apply
 * @param isDarkMode Whether the content should be formatted in dark mode
 * @param darkColorHandler An optional dark color handler object. When it is passed, we will use this handler to do variable-based dark color instead of original dataset base dark color
 */
export default function applyFormat(element: HTMLElement, format: DefaultFormat, isDarkMode?: boolean, darkColorHandler?: DarkColorHandler | null): void;