code: async function runInFrame(tabId, frameId, script, ...args) {
  	if (typeof tabId !== 'number') { tabId = (await getActiveTabId()); }
  	return (await Frame.get(tabId, frameId || 0)).call(getScource(script), args);
  }
docs: Dynamically executes functions as content scripts.
  @param  {natural|null}     tabId    The id of the tab to run in. Default to an active tab, preferably in the current window.
  @param  {natural|null}     frameId  The id of the frame within the tab to run in. Defaults to the top level frame.
  @param  {function|string}  script   A function that will be decompiled and run as content script.
  If the "contentEval" manifest permission is set, this may also be a code string that will be wrapped in a function.
  @param  {...any}           args     Arguments that will be cloned to call the function with.
  `this` in the function will be the global object (not necessarily `window`).
  @return {any}                       The value returned or promised by `script`.
  @throws {any}                       If `script` throws or otherwise fails to execute.