Method of

packages/svelte/src/motion/spring.js:230–238

* Create a spring whose value is bound to the return value of `fn`. This must be called * inside an effect root (for example, during component initialisation). * * ```svelte * <script> * import { Spring } from 'svelte/motion'; * * let { number } = $props(); * * const spring = Sp

(fn, options)

	 * @param {SpringOptions} [options]
	 */
	static of(fn, options) {
		const spring = new Spring(fn(), options);

		render_effect(() => {
			spring.set(fn());
		});

		return spring;
	}

	/** @param {T} value */
	#update(value) {