/**
 * 检查 `value` 是否是包含 `HTML`
 *
 * @example
 * ```ts
 * containsHTML('<div>Test</div>')
 * // => true
 * containsHTML('<img src='image.jpg' />')
 * // => true
 * containsHTML('</>')
 * // => false
 * containsHTML('1 < 2 && 3 > 4')
 * // => false
 * ```
 */
export declare function containsHTML(value: unknown): value is string;