hi94740

// Copy the function below to use in your scripts.
function createWidget() {
  const widget = new ListWidget()
  const wrap = (view, isWidget) => {
    let wrapped
    const wrapWith = (key, exec) => [key, (...args) => (exec(...args), wrapped)]
    wrapped = Object.fromEntries(Object.keys(view).map(key => {
      if (typeof view[key] === "function") {
        if (key.startsWith("add")) return wrapWith(key, (...args) => {
          let cb