/**
 * Animate an element when it enters the viewport.
 *
 * Framework-neutral DOM core. Returns a deterministic lifecycle handle whose
 * `update(newOptions)` treats the argument as the complete new option set, so
 * options removed by a reactive caller are no longer retained.
 *
 * @param {HTMLElement} element
 * @param {import('./types.js').AnimateOptions} [options]
 * @returns {import('./types.js').AnimateHandle}
 */
export function animate(element: HTMLElement, options?: import("./types.js").AnimateOptions): import("./types.js").AnimateHandle;