/**
 * Reads the host's dynamic rich-text CSS classes from the rendered article DOM.
 *
 * Staffbase applies tenant/theme-specific classes to the article body; mirroring
 * them on the widget's own rich-text container keeps typography consistent with
 * the host. Falls back to the stable default classes when the element is absent
 * or when there is no DOM (SSR/tests), so callers always get a usable string.
 * @param {string} [query] - CSS selector locating the source element.
 * @param {string} [defaultClasses] - Classes returned when the element is not found.
 * @returns {string} The host's dynamic rich-text classes, or the defaults.
 */
export declare const getDynamicClasses: (query?: string, defaultClasses?: string) => string;
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